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The Athena Lunar Lander Also Fell Over on its Side The Athena lunar lander (IM-2) has been declared dead after it failed to stick the landing on the surface of the Moon. The second commercial lander launched by Texas-based aerospace company Rotating Black Holes are Packed with Energy. Here's How to Unlock It Catching t
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News
A New Catalog of Close to 3,000 Supernova Challenges Theories on Dark Energy
1+ day, 15+ hour ago (88+ words) The most comprehensive catalogue of exploding white dwarf stars ever assembled has revealed new clues about dark energy, the mysterious force driving the universe’s accelerating expansion....
Dense Galaxies Are Carving Out A Bubble in the Early Universe
2+ day, 18+ hour ago (185+ words) Light could only travel freely in the Universe after cosmic reionization. Before that, neutral hydrogen stopped photons from travelling. The JWST has found evidence of an overdensity of galaxies carving out a bubble of reionization. Is this how it all…...
Unexplained Gamma-Rays from the Galactic Center Could be from Self-Annihilating Dark Matter
3+ day, 21+ hour ago (417+ words) In 2009, astronomers using the Fermi Gamma-ray Space Telescope discovered an excess of energy in the Milky Way's galactic center. Deep observations found no source for the energy, called the Galactic Center GeV Excess (GCE). What's generating it? Research in Physical…...
New Research Says that Early Galaxies Could be Sending us Neutrinos
4+ day, 17+ hour ago (517+ words) Universe Today Shortly after the James Webb Space Telescope (JWST) became operational, it directed its sophisticated infrared optics towards the early Universe. There, it observed an abundance of small red objects that turned out to be high-redshift galaxies that existed…...
Astronomers Unmask a Supernova Impostor
4+ day, 22+ hour ago (862+ words) A distant star has captured astronomers' attention over the past decade, teasing them with indications that it will soon explode as a supernova. But new research shows that something else entirely is behind the star's outbursts. Rather than an impending…...
Next-Gen Gravitational Wave Detectors Could Spot the First Black Holes
5+ day, 6+ hour ago (157+ words) A few hundred million years after the Big Bang, the first stars ignited - literally the “let there be light” moment for the universe. Now known to astronomers as Population III, or Pop III, stars, these giants were very different from…...
Some Black Holes Grow Much Faster Than Their Galaxies
6+ day, 2+ hour ago (222+ words) Some eROSITA quasars in this study. The eight exceptional black hole are at the upper left of the figure. Credit: Buchner, et al In short, these giant black holes are eating themselves out of house and home. One distinct feature…...
Do Black Holes Grow Along With the Universe? A New Study Says Yes
6+ day, 5+ hour ago (105+ words) As with many insightful theoretical breakthroughs, it comes at a time of contradictory observational evidence. Thomas Kuhn would be proud. Over the past few years, the James Webb Space Telescope (JWST) and other new observatories have been looking back to…...
A Pair of White Dwarfs Locked in a Six-Minute Orbit Might One Day Be Observed By Gravitational Waves
1+ week, 1+ day ago (31+ words) Future gravitational wave observatories will be able to see the gravitational waves of close-orbiting binary stars. A newly studied white dwarf system could be one of the first systems we observe....
Pulsar Timing Arrays Could Look for Evidence of Dark Matter Stars
1+ week, 3+ day ago (41+ words) Pulsar Timing Arrays have been used to observe the background of gravitational waves in our galaxy. We aren't certain of their origin, but a new study shows a strong source could be early supermassive giants known as dark stars....