STM Blog
Get Ready to Witness the Breathtaking Total Solar Eclipse of 2024 Across North America!
The countdown has officially begun for the great North American solar eclipse, set to occur on Monday, April 8, 2024.

The total solar eclipse of August 21, 2017, as seen from Madras, Oregon. This is a composite of short, medium, and long exposures. No single exposure can capture the huge range of brightness exhibited by the solar corona, which is sculpted by the Sun’s magnetic field. Several red solar prominences (eruptions of glowing hydrogen gas) are visible, as are a couple of stars. No filter was used for the exposures, as totality is about as bright as the full Moon and just as safe to look at. At all other times, though, a safe solar filter is required to observe or photograph the Sun. Click on the image or here for a larger version.
Photo by Rick Fienberg, processing by Sean Walker; courtesy TravelQuest International and Sky & Telescope
Countdown to the Total Solar Eclipse
The countdown has officially begun for the great North American solar eclipse, set to occur on Monday, April 8, 2024. This natural phenomenon will occur when the Moon passes directly between Earth and the Sun, blocking the Sun’s bright face and revealing its wispy outer atmosphere, the solar corona. This total solar eclipse will darken parts of Eastern Canada, sweep from Texas to Maine, and cross Mexico. Nearly everyone in North America will get a chance to witness a partial solar eclipse, while those within the narrow path of the Moon’s dark shadow will experience the real excitement for a few fleeting minutes.
The annular solar eclipse of May 10, 1994, as seen from Ogunquit, Maine. The sky appears black because the photograph was made through a safe solar filter, which blocks all but 1 part in 100,000 of the incident light. This photo and the one above, of a total solar eclipse, are at the same scale. Click on the image or here for a larger version.
Photo by Richard Tresch Fienberg; courtesy Sky & Telescope and the American Astronomical Society.
The annular solar eclipse, occurring on Saturday, October 14, 2023, will be visible within a roughly 125-mile-wide path from Oregon to Texas and on into Mexico, Central America, and northern South America. Most North Americans outside the path will experience a partial solar eclipse.
From beginning to end, a solar eclipse lasts up to about 3 hours. The Moon slowly covers the Sun, then uncovers it, during the beginning and ending partial phases. The real excitement comes in the middle, but only for those within the narrow path of the Moon’s dark shadow, and only for a few fleeting minutes.
It is important to note that during partial and annular solar eclipses, the Sun remains dangerously bright at all times and must never be looked at directly except through special-purpose “eclipse glasses” or handheld viewers that meet the requirements of the ISO 12312-2 international standard. During totality, however, you can safely view the eclipsed Sun without eye protection.


According to Rick Fienberg, Project Manager of the American Astronomical Society (AAS) Solar Eclipse Task Force and Senior Contributing Editor of Sky & Telescope, “if you can get yourself into the path of the Moon’s shadow for a total solar eclipse, it’s definitely worth the effort. A 99% partial solar eclipse doesn’t get you 99% of the experience of a total solar eclipse — the last 1% is literally the difference between night and day.”
The AAS Solar Eclipse Task Force, partnering with the outreach team for NASA’s PUNCH mission, is holding a planning workshop in June 2023 for everyone involved or wanting to become involved in preparing their community for the upcoming North American solar eclipses, whether on or off the eclipse path(s). Attendees will include amateur and professional astronomers; formal and informal educators; local, state, and national government officials; representatives from the tourism and hospitality industries; professionals in health, safety, transportation, and emergency management; local, state, and national park rangers; and artists, filmmakers, science writers, and event planners.
We get solar eclipses because, by an amazing cosmic coincidence, the Sun and Moon appear almost exactly the same size in our sky. Our planet is closest to the Sun (perihelion) in early January and farthest (aphelion) in early July, and the Sun appears about 3% wider in January than in July. The eclipse geometry is fascinating, and it is worth learning more about how these natural phenomena occur.
In conclusion, the countdown has officially begun for the great North American solar eclipse. Whether you are within the narrow path of the Moon’s dark shadow or experiencing a partial solar eclipse, it is important to view the eclipsed Sun safely. Don’t miss out on this once-in-a-generation opportunity to witness the magnificent solar corona and other noteworthy phenomena.
MORE INFORMATION
For more information about the October 2023 annular eclipse, see “Solar and Lunar Eclipses in 2023” on Sky & Telescope’s website. A thorough preview of the April 2024 total solar eclipse appears in the April 2023 issue of Sky & Telescope magazine, now on newsstands.
You can get local circumstances of upcoming solar (and lunar) eclipses for cities worldwide on TimeandDate.com’s Eclipses page.
https://stmdailynews.com/category/science/
Discover more from Daily News
Subscribe to get the latest posts sent to your email.
astronomy
A Celestial Spectacle: Witness the Rare Planetary Parade on February 28
On February 28, 2025, a rare planetary parade will showcase all seven planets aligning in the night sky. This remarkable event won’t occur again until 2040, making it unmissable.

Planetary Parade
Astronomy enthusiasts and casual stargazers alike have something extraordinary to look forward to at the end of February. For one brief moment, on the evening of February 28, 2025, all seven planets—Mars, Jupiter, Uranus, Venus, Neptune, Mercury, and Saturn—will align in the night sky, creating a captivating planetary parade. This remarkable event marks the last time such an alignment will be visible until 2040, making it an occasion not to be missed.
What to Expect
The planetary parade will unfold shortly after sunset, with each planet showcasing its brilliance against the backdrop of the evening sky. While most of these celestial bodies will shine brighter than even the brightest stars, Uranus and Neptune will likely require binoculars or a telescope for a better view.
Currently, six of the planets are already aligned, but stargazers will have to wait until February 28 for Mercury to make its debut just above the horizon. Dr. Christopher Barnes, a senior lecturer at the University of Derby, explains the visibility details: “Mars will appear in the east, Jupiter and Uranus in the southeast, and Venus, Neptune, and Saturn in the west.”
Viewing Tips
For those wishing to experience this cosmic event, the best time to observe will be just after sunset when the stars begin to appear. Dr. Barnes suggests that even people in urban areas, where light pollution is often an issue, will be able to see most of the planets. However, seeking a location away from city lights will enhance the viewing experience.
The Benefits of Stargazing
Beyond the thrilling visual spectacle, taking time to gaze upon the stars and planets offers numerous benefits for one’s mental and emotional well-being. Dr. Barnes points out that stargazing encourages mindfulness, allowing individuals to detach from the stresses of daily life. “Engaging with the night sky fosters a sense of peace, restoration, and perspective,” he says.
Future Events
After February 28, the next opportunity to see a planetary alignment of five or more planets will occur in late October 2028 and again in February 2034. However, another seven-planet alignment will not be witnessed for another 15 years, making this February a particularly special occasion.
To cater to those unable to view the parade due to unfavorable weather or light pollution, several observatories will provide live streams of the event. This means everyone can partake in this astral celebration from the comfort of their homes.
As we approach February 28, it’s time to mark your calendars for this rare planetary parade. Whether you grab your telescope, plan a trip to a dark-sky location, or tune in to a live stream, don’t miss your chance to witness this extraordinary alignment of the planets, a spectacle that will be remembered long after it fades from view. Prepare to look up and enjoy the wonders of our solar system!
Resources:
Who doesn’t love a parade, especially a planet parade? How and when to see up to 7 planets
Planetary Parade will soon be visible in the evening sky
The science section of our news blog STM Daily News provides readers with captivating and up-to-date information on the latest scientific discoveries, breakthroughs, and innovations across various fields. We offer engaging and accessible content, ensuring that readers with different levels of scientific knowledge can stay informed. Whether it’s exploring advancements in medicine, astronomy, technology, or environmental sciences, our science section strives to shed light on the intriguing world of scientific exploration and its profound impact on our daily lives. From thought-provoking articles to informative interviews with experts in the field, STM Daily News Science offers a harmonious blend of factual reporting, analysis, and exploration, making it a go-to source for science enthusiasts and curious minds alike. https://stmdailynews.com/category/science/
Discover more from Daily News
Subscribe to get the latest posts sent to your email.
News
Water is the other US-Mexico border crisis, and the supply crunch is getting worse
The U.S.-Mexico border is facing a severe water crisis exacerbated by climate change, increased demand, and pollution. Collaborative governance is essential to address these growing challenges effectively.

Gabriel Eckstein, Texas A&M University and Rosario Sanchez, Texas A&M University
Immigration and border security will be the likely focus of U.S.-Mexico relations under the new Trump administration. But there also is a growing water crisis along the U.S.–Mexico border that affects tens of millions of people on both sides, and it can only be managed if the two governments work together.
Climate change is shrinking surface and groundwater supplies in the southwestern U.S. Higher air temperatures are increasing evaporation rates from rivers and streams and intensifying drought. Mexico is also experiencing multiyear droughts and heat waves.
Growing water use is already overtaxing limited supplies from nearly all of the region’s cross-border rivers, streams and aquifers. Many of these sources are contaminated with agricultural pollutants, untreated waste and other substances, further reducing the usability of available water.
As Texas-based scholars who study the legal and scientific aspects of water policy, we know that communities, farms and businesses in both countries rely on these scarce water supplies. In our view, water conditions on the border have changed so much that the current legal framework for managing them is inadequate.
Unless both nations recognize this fact, we believe that water problems in the region are likely to worsen, and supplies may never recover to levels seen as recently as the 1950s. Although the U.S. and Mexico have moved to address these concerns by updating the 1944 water treaty, these steps are not long-term solutions.
Growing demand, shrinking supply
The U.S.-Mexico border region is mostly arid, with water coming from a few rivers and an unknown amount of groundwater. The main rivers that cross the border are the Colorado and the Rio Grande – two of the most water-stressed systems in the world.
The Colorado River provides water to more than 44 million people, including seven U.S. and two Mexican states, 29 Indian tribes and 5.5 million acres of farmland. Only about 10% of its total flow reaches Mexico. The river once emptied into the Gulf of California, but now so much water is withdrawn along its course that since the 1960s it typically peters out in the desert.
The Rio Grande supplies water to roughly 15 million people, including 22 Indian tribes, three U.S. and four Mexican states and 2.8 million irrigated acres. It forms the 1,250-mile (2,000-kilometer) Texas-Mexico border, winding from El Paso in the west to the Gulf of Mexico in the east.

Other rivers that cross the border include the Tijuana, San Pedro, Santa Cruz, New and Gila. These are all significantly smaller and have less economic impact than the Colorado and the Rio Grande.
At least 28 aquifers – underground rock formations that contain water – also traverse the border. With a few exceptions, very little information on these shared resources exists. One thing that is known is that many of them are severely overtapped and contaminated.
Nonetheless, reliance on aquifers is growing as surface water supplies dwindle. Some 80% of groundwater used in the border region goes to agriculture. The rest is used by farmers and industries, such as automotive and appliance manufacturers.
Over 10 million people in 30 cities and communities throughout the border region rely on groundwater for domestic use. Many communities, including Ciudad Juarez; the sister cities of Nogales in both Arizona and Sonora; and the sister cities of Columbus in New Mexico and Puerto Palomas in Chihuahua, get all or most of their fresh water from these aquifers.
A booming region
About 30 million people live within 100 miles (160 kilometers) of the border on both sides. Over the next 30 years, that figure is expected to double.
Municipal and industrial water use throughout the region is also expected to increase. In Texas’ lower Rio Grande Valley, municipal use alone could more than double by 2040.
At the same time, as climate change continues to worsen, scientists project that snowmelt will decrease and evaporation rates will increase. The Colorado River’s baseflow – the portion of its volume that comes from groundwater, rather than from rain and snow – may decline by nearly 30% in the next 30 years.
Precipitation patterns across the region are projected to be uncertain and erratic for the foreseeable future. This trend will fuel more extreme weather events, such as droughts and floods, which could cause widespread harm to crops, industrial activity, human health and the environment.
Further stress comes from growth and development. Both the Colorado River and Rio Grande are tainted by pollutants from agricultural, municipal and industrial sources. Cities on both sides of the border, especially on the Mexican side, have a long history of dumping untreated sewage into the Rio Grande. Of the 55 water treatment plants located along the border, 80% reported ongoing maintenance, capacity and operating problems as of 2019.
Drought across the border region is already stoking domestic and bilateral tensions. Competing water users are struggling to meet their needs, and the U.S. and Mexico are straining to comply with treaty obligations for sharing water.
Cross-border water politics
Mexico and the United States manage water allocations in the border region mainly under two treaties: a 1906 agreement focused on the Upper Rio Grande Basin and a 1944 treaty covering the Colorado River and Lower Rio Grande.
Under the 1906 treaty, the U.S. is obligated to deliver 60,000 acre-feet of water to Mexico where the Rio Grande reaches the border. This target may be reduced during droughts, which have occurred frequently in recent decades. An acre-foot is enough water to flood an acre of land 1 foot deep – about 325,000 gallons (1.2 million liters).
Allocations under the 1944 treaty are more complicated. The U.S. is required to deliver 1.5 million acre-feet of Colorado River water to Mexico at the border – but as with the 1906 treaty, reductions are allowed in cases of extraordinary drought.
Until the mid-2010s, the U.S. met its full obligation each year. Since then, however, regional drought and climate change have severely reduced the Colorado River’s flow, requiring substantial allocation reductions for both the U.S. and Mexico.
In 2025, states in the U.S. section of the lower Colorado River basin will see a reduction of over 1 million acre-feet from prior years. Mexico’s allocation will decline by approximately 280,500 acre-feet under the 1944 treaty.
This agreement provides each nation with designated fractions of flows from the Lower Rio Grande and specific tributaries. Regardless of water availability or climatic conditions, Mexico also is required to deliver to the U.S. a minimum of 1,750,000 acre-feet of water from six named tributaries, averaged over five-year cycles. If Mexico falls short in one cycle, it can make up the deficit in the next five-year cycle, but cannot delay repayment further. https://www.youtube.com/embed/IgWSMgg9TmE?wmode=transparent&start=0 The U.S. and Mexico are struggling to share a shrinking water supply in the border region.
Since the 1990s, extraordinary droughts have caused Mexico to miss its delivery obligations three times. Although Mexico repaid its water debts in subsequent cycles, these shortfalls raised diplomatic tensions that led to last-minute negotiations and large-scale water transfers from Mexico to the U.S.
Mexican farmers in Lower Rio Grande irrigation districts who had to shoulder these cuts felt betrayed. In 2020, they protested, confronting federal soldiers and temporarily seizing control of a dam.
U.S. President Donald Trump and Mexican President Claudia Scheinbaum clearly appreciate the political and economic importance of the border region. But if water scarcity worsens, it could supplant other border priorities.
In our view, the best way to prevent this would be for the two countries to recognize that conditions are deteriorating and update the existing cross-border governance regime so that it reflects today’s new water realities.
Gabriel Eckstein, Professor of Law, Texas A&M University and Rosario Sanchez, Senior Research Scientist, Texas Water Resources Institute, Texas A&M University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
Discover more from Daily News
Subscribe to get the latest posts sent to your email.
The Bridge
Harriet Tubman led military raids during the Civil War as well as her better-known slave rescues
Harriet Tubman, renowned for her vital role in the Underground Railroad, also served as a Civil War spy and leader, fighting for freedom and equality despite enduring systemic racism and discrimination.

Kate Clifford Larson, Brandeis University
Harriet Tubman was barely 5 feet tall and didn’t have a dime to her name.
What she did have was a deep faith and powerful passion for justice that was fueled by a network of Black and white abolitionists determined to end slavery in America.
“I had reasoned this out in my mind,” Tubman once told an interviewer. “There was one of two things I had a right to, liberty, or death. If I could not have one, I would have the other; for no man should take me alive.”
Though Tubman is most famous for her successes along the Underground Railroad, her activities as a Civil War spy are less well known.
As a biographer of Tubman, I think this is a shame. Her devotion to America and its promise of freedom endured despite suffering decades of enslavement and second class citizenship.
It is only in modern times that her life is receiving the renown it deserves, most notably her likeness appearing on a US$20 bill in 2030. The Harriet Tubman $20 bill will replace the current one featuring a portrait of U.S. President Andrew Jackson.
In another recognition, Tubman was accepted in June 2021 to the United States Army Military Intelligence Corps Hall of Fame at Fort Huachuca, Arizona. She is one of 278 members, 17 of whom are women, honored for their special operations leadership and intelligence work.
Though traditional accolades escaped Tubman for most of her life, she did achieve an honor usually reserved for white officers on the Civil War battlefield.
After she led a successful raid of a Confederate outpost in South Carolina that saw 750 Black people rescued from slavery, a white commanding officer fetched a pitcher of water for Tubman as she remained seated at a table.
A different education
Believed to have been born in March 1822 in Dorchester County, Maryland, Tubman was named Araminta by her enslaved parents, Rit and Ben Ross.
“Minty” was the fifth of nine Ross children. She was frequently separated from her family by her white enslaver, Edward Brodess, who started leasing her to white neighbors when she was just 6 years old.
At their hands, she endured physical abuse, harsh labor, poor nutrition and intense loneliness.
As I learned during my research into Tubman’s life, her education did not happen in a traditional classroom, but instead was crafted from the dirt. She learned to read the natural world – forests and fields, rivers and marshes, the clouds and stars.
She learned to walk silently across fields and through the woods at night with no lights to guide her. She foraged for food and learned a botanist’s and chemist’s knowledge of edible and poisonous plants – and those most useful for ingredients in medical treatments.
She could not swim, and that forced her to learn the ways of rivers and streams – their depths, currents and traps.
She studied people, learned their habits, watched their movements – all without being noticed. Most important, she also figured out how to distinguish character. Her survival depended on her ability to remember every detail.
After a brain injury left her with recurring seizures, she was still able to work at jobs often reserved for men. She toiled on the shipping docks and learned the secret communication and transportation networks of Black mariners.
Known as Black Jacks, these men traveled throughout the Chesapeake Bay and the Atlantic seaboard. With them, she studied the night sky and the placement and movement of the constellations.
She used all those skills to navigate on the water and land.
“… and I prayed to God,” she told one friend, “to make me strong and able to fight, and that’s what I’ve always prayed for ever since.”
Tubman was clear on her mission. “I should fight for my liberty,” she told an admirer, “as long as my strength lasted.”
The Moses of the Underground Railroad
In the fall of 1849, when she was about to be sold away from her family and free husband John Tubman, she fled Maryland to freedom in Philadelphia.
Between 1850 and 1860, she returned to the Eastern Shore of Maryland about 13 times and successfully rescued nearly 70 friends and family members, all of whom were enslaved. It was an extraordinary feat given the perils of the 1850 Slave Fugitive Act, which enabled anyone to capture and return any Black man or woman, regardless of legal status, to slavery.
Those leadership qualities and survival skills earned her the nickname “Moses” because of her work on the Underground Railroad, the interracial network of abolitionists who enabled Black people to escape from slavery in the South to freedom in the North and Canada.
As a result, she attracted influential abolitionists and politicians who were struck by her courage and resolve – men like William Lloyd Garrison, John Brown and Frederick Douglass. Susan B. Anthony, one of the world’s leading activists for women’s equal rights, also knew of Tubman, as did abolitionist Lucretia Mott and women’s rights activist Amy Post.
“I was the conductor of the Underground Railroad for eight years,” Tubman once said. “and I can say what most conductors can’t say; I never ran my train off the track and I never lost a passenger.”
Battlefield soldier
When the Civil War started in the spring of 1861, Tubman put aside her fight against slavery to conduct combat as a soldier and spy for the United States Army. She offered her services to a powerful politician.
Known for his campaign to form the all-Black 54th and 55th regiments, Massachusetts Gov. John Andrew admired Tubman and thought she would be a great intelligence asset for the Union forces.
He arranged for her to go to Beaufort, South Carolina, to work with Army officers in charge of the recently captured Hilton Head District.
There, she provided nursing care to soldiers and hundreds of newly liberated people who crowded Union camps. Tubman’s skill curing soldiers stricken by a variety of diseases became legendary.
But it was her military service of spying and scouting behind Confederate lines that earned her the highest praise.
She recruited eight men and together they skillfully infiltrated enemy territory. Tubman made contact with local enslaved people who secretly shared their knowledge of Confederate movements and plans.
Wary of white Union soldiers, many local African Americans trusted and respected Tubman.
According to George Garrison, a second lieutenant with the 55th Massachusetts Regiment, Tubman secured “more intelligence from them than anybody else.”
In early June 1863, she became the first woman in U.S. history to command an armed military raid when she guided Col. James Montgomery and his 2nd South Carolina Colored Volunteers Regiment along the Combahee River.
While there, they routed Confederate outposts, destroyed stores of cotton, food and weapons – and liberated over 750 enslaved people.
The Union victory was widely celebrated. Newspapers from Boston to Wisconsin reported on the river assault by Montgomery and his Black regiment, noting Tubman’s important role as the “Black she Moses … who led the raid, and under whose inspiration it was originated and conducted.”
Ten days after the successful attack, radical abolitionist and soldier Francis Jackson Merriam witnessed Maj. Gen. David Hunter, commander of the Hilton Head district, “go and fetch a pitcher of water and stand waiting with it in his hand while a black woman drank, as if he had been one of his own servants.”
In that letter to Gov. Andrew, Merriam added, “that woman was Harriet Tubman.”
Lifelong struggle
Despite earning commendations as a valuable scout and soldier, Tubman still faced the racism and sexism of America after the Civil War.
When she sought payment for her service as a spy, the U.S. Congress denied her claim. It paid the eight Black male scouts, but not her.
Unlike the Union officers who knew her, the congressmen did not believe – they could not imagine – that she had served her country like the men under her command, because she was a woman.
Gen. Rufus Saxton wrote that he bore “witness to the value of her services… She was employed in the Hospitals and as a spy [and] made many a raid inside the enemy’s lines displaying remarkable courage, zeal and fidelity.”
Thirty years later, in 1899, Congress awarded her a pension for her service as a Civil War nurse, but not as a soldier spy.
When she died from pneumonia on March 10, 1913, she was believed to have been 91 years old and had been fighting for gender equality and the right to vote as a free Black woman for more than 50 years after her work during the Civil War.
Surrounded by friends and family, the deeply religious Tubman showed one last sign of leadership, telling them: “I go to prepare a place for you.”
Kate Clifford Larson, Professor of History, Brandeis University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
Discover more from Daily News
Subscribe to get the latest posts sent to your email.
-
Urbanism1 year ago
Signal Hill, California: A Historic Enclave Surrounded by Long Beach
-
News2 years ago
Diana Gregory Talks to us about Diana Gregory’s Outreach Services
-
Senior Pickleball Report2 years ago
The Absolute Most Comfortable Pickleball Shoe I’ve Ever Worn!
-
STM Blog2 years ago
World Naked Gardening Day: Celebrating Body Acceptance and Nature
-
Senior Pickleball Report2 years ago
ACE PICKLEBALL CLUB TO DEBUT THEIR HIGHLY ANTICIPATED INDOOR PICKLEBALL FRANCHISES IN THE US, IN EARLY 2023
-
Travel2 years ago
Unique Experiences at the CitizenM
-
Automotive2 years ago
2023 Nissan Sentra pricing starts at $19,950
-
Senior Pickleball Report2 years ago
“THE PEOPLE’S CHOICE AWARDS OF PICKLEBALL” – VOTING OPEN