18+ hour, 21+ min ago  (766+ words) Researchers say the isolated white dwarfs Gandalf and Moon-Sized define a new class of stellar remnant because they share five traits, including X-ray emission. Across the immense scale of the Universe, a single unusual object can prompt astronomers to look…...

18+ hour, 21+ min ago  (17+ words) Models suggest that impact-ejected material from Earth could reach Venus" clouds and potentially survive there briefly....

18+ hour, 20+ min ago  (669+ words) A new method could improve cosmology research by analyzing supernovae together with the galaxies that host them. An international collaboration led by scientists at the Institute of Cosmos Sciences of the University of Barcelona (ICCUB) has created a new approach…...

2+ day, 14+ hour ago  (312+ words) Sperm cells move through fluids that should stop them almost instantly, yet new research suggests they succeed by exploiting unusual properties of active living matter....

2+ day, 15+ hour ago  (632+ words) NASA's James Webb Space Telescope has uncovered a rare alien world that sits in a cosmic "sweet spot" between scorching hot Jupiters and frozen gas giants like Saturn. Astronomers using NASA's James Webb Space Telescope (JWST) have examined the atmosphere…...

2+ day, 15+ hour ago  (411+ words) A major SETI search found no artificial narrowband radio signal from K2-18b, but it sharpened the tools for future searches. K2-18b has become one of the most discussed worlds in recent exoplanet research. The planet lies 124 light-years away in the constellation Leo,…...

3+ day, 20+ hour ago  (447+ words) Scientists may have identified one of the Solar System's most important "planet factories" hidden just beyond Jupiter....

3+ day, 20+ hour ago  (674+ words) Astrobiologists are raising concerns that humanity's search for alien life may be limited by the very tools designed to find it. What if humanity's greatest mistake in the search for alien life is assuming we would recognize it when we…...

4+ day, 21+ hour ago  (331+ words) NASA's new electric propulsion engine set a U. S. power record and could transform future Mars missions. The thrusters use much less fuel than chemical rockets while gradually reaching extremely high speeds. Imagine you're part of the fourth crewed mission to Mars....

4+ day, 21+ hour ago  (391+ words) Scientists have discovered that ultraheavy atomic nuclei could explain some of the highest-energy cosmic rays ever observed. The particles may come from extreme events such as neutron-star mergers and collapsing massive stars. Scientists may have uncovered a new clue behind…...