Modern cosmology rests on a simple assumption: If we look on large enough scales, matter should be distributed evenly, with no preferred direction within the cosmos. This is known as the cosmological principle.
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Modern cosmology rests on a simple assumption: If we look on large enough scales, matter should be distributed evenly, with no preferred direction within the cosmos. This is known as the cosmological principle.
Seventy years ago, Earth had only one satellite: the moon. Now it has more than 15,000—about 10,000 of which are owned by Elon Musk’s SpaceX. The world’s first trillionaire plans to launch 1 million more satellites, each roughly 70 meters (230 feet) long and 20 meters (66 feet) wide, that would form a data center megaconstellation.
The European Space Agency’s XMM-Newton and NASA’s Chandra X-ray space telescopes have spotted the aftermath of three bright explosions echoing through the outer spiral arms of our galaxy, the Milky Way. By measuring the distance to these echoes, they found the outer arms to be up to 10% farther away than previously thought.
Oklahoma City Police K-9 Dash grabbed onto a fleeing suspect’s leg; the suspect then began to drive away, dragging the K-9 “a significant distance down the road”
Martian dust storms may generate atmospheric electrical conditions that could impact future missionsA new study by a doctoral researcher at The University of Alabama in Huntsville (UAH), part of The University of Alabama System, suggests global dust storms on Mars may organize the Martian atmosphere into regions favorable for electrical activity, increasing the potential for electrostatic discharges that could affect missions to the red planet by interfering with electronics, causing arcing between conductive surfaces, and damaging exposed scientific instruments and spacecraft systems. The research, conducted by Chali Idosa Uga, a third-year Ph.D. student in the Department of Space Science at UAH, is published in The Planetary Science Journal.
Saturn’s moon Enceladus has become a prime solar system target for astrobiologists. This is because the small moon, which is just over 10% the diameter of Earth’s moon, harbors a vast subsurface ocean beneath its icy crust. This subsurface ocean, combined with the geysers at Enceladus’ south pole that discharge bits of this ocean into the void, provides scientists with a treasure trove of opportunities for scientific research into whether Enceladus could harbor ingredients for life as we know it, or even direct evidence of life.
A new European Southern Observatory (ESO) study has found that current proposals to launch more than 1.7 million satellites into orbit, including extremely bright ones, would have “devastating consequences for astronomy.” According to the study, no more than 100,000 faint satellites, below naked-eye visibility, should orbit Earth to safeguard our ability to observe the night sky with modern telescopes.
Pierce County prosecutors stated they could not definitively prove that the first driver acted with negligence or that the second driver knew they struck Trooper Tara-Marysa Guting
When astronomers discovered a giant planet orbiting a dead star in 2020, they wondered how it survived its star’s violent demise. Now, observations from NASA’s James Webb Space Telescope (JWST) may finally explain the planet’s unlikely escape from destruction.
When it comes to drought stress, timing can be the difference between saving a crop and losing it, whether in a greenhouse or in the high-stakes environment of future space missions. In a recent study published in Plant Phenomics, researchers with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS), the United States Department of Agriculture (USDA) and NASA used hyperspectral imaging to detect stress in lettuce plants shortly after watering was reduced.
Millions of stars. Thousands of hidden worlds. One unprecedented view of our galaxy. Three years since launch, ESA’s Euclid space telescope reveals the center of the Milky Way galaxy in extraordinary detail: a mosaic of tens of millions of stars captured in just 26 hours. But this is more than an image. It is a map of stellar evolution, from dark clouds where stars are being born to ancient populations packed into the galactic bulge.
Research has shed new light on why some distant galaxies suddenly stop forming stars. An international team led by astronomers at the University of Nottingham has used the James Webb Space Telescope to study a large sample of recently “quenched” galaxies in the distant universe, observed around nine billion years ago. Their findings appear in the Monthly Notices of the Royal Astronomical Society.
Imagine standing in the emptiest place the universe has to offer, a stretch of cosmic ocean so vast that light takes tens of millions of years to cross it, and yet still finding company. That is the puzzle behind a new study built on the Calar Alto Void Integral field Treasury surveY, or CAVITY, posted to the arXiv preprint server.
NASA on Tuesday announced new uncrewed missions to aid in the future creation of a lunar surface base, a project beginning to take shape despite recent setbacks.
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