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Radio astronomy has a pollution problem. Satellites thousands of kilometers overhead, designed to broadcast communications or relay data, are increasingly contaminating the frequencies astronomers use to study the universe. While much attention has focused on SpaceX’s Starlink and other low Earth orbit constellations, what about the satellites much farther away? Go to Source […] On 12 December 2025 at 03:09:36 UTC, astronomers at the Armagh Observatory and Planetarium (AOP) have captured what is believed to be the first video recording of a lunar impact flash in Ireland, and the second recorded from the UK. Go to Source Astronomers from the University of Hawai’i (UH) at Manoa and elsewhere have observed the Taurus star-forming region, which resulted in the discovery of planetary-mass and stellar companions of two ultracool dwarf stars. The new finding was presented in a paper published December 4 on the pre-print server arXiv. Go to Source The first exoplanet ever discovered in 1995 was what we now call a “hot Jupiter,” a planet as massive as Jupiter with an orbital period of just a few days. Today, hot Jupiters are thought to have formed far from their stars—similar to Jupiter in our solar system—and later migrated inward. Go to Source […] What could force a supermassive black hole (SMBH) out of its host galaxy? They can have hundreds of millions, even billions of solar masses. What’s powerful enough to dislodge one of these behemoths? Go to Source One of the oldest unsolved riddles in planetary science concerns the origin of the moon. Over a century ago, George Darwin proposed that tidal and centrifugal forces on a rapidly rotating proto-Earth caused the moon to be spun off into an Earth orbit. Go to Source SpaceX has authorized an insider share sale that values Elon Musk’s rocket and satellite maker at about $800 billion, according to a company message seen by Bloomberg on Dec. 12. Go to Source The Large and Small Magellanic Clouds are irregular dwarf galaxies and satellites of the Milky Way. The LMC is about 163,000 light-years away and the SMC is about 206,000 light-years away, and their close proximity makes them excellent laboratories for the study of galaxies in general. The Clouds are the focus of a new research […] A research team has investigated long-term X-ray variability in the neutron star NGC 7793 P13, an object thought to be driven by supercritical accretion, where an extraordinary amount of gas falls onto the object and emits intense X-rays. The team found a relation between the X-ray luminosity and the rotation velocity, which could provide clues […] Rocky planets like our Earth may be far more common than previously thought, according to new research published in the journal Science Advances. It suggests that when our solar system formed, a nearby supernova (the massive explosion of a star near the end of its life) bathed it in cosmic rays containing the radioactive ingredients […] More than 20 years after founding SpaceX, the record-breaking company that transformed the global space industry, Elon Musk is planning to take the enterprise public. Go to Source Gemini North captured new images of Comet 3I/ATLAS after it reemerged from behind the sun on its path out of the solar system. The data were collected during a Shadow the Scientists session—a unique outreach initiative that invites students around the world to join researchers as they observe the universe on the world’s most advanced […] SpaceX and United Launch Alliance are combining for a busy week of rocket launches on the Space Coast. Go to Source Elon Musk has signaled plans to soon seek a public stock listing of SpaceX, confirming a report that links the strategic shift to a near-term need for more capital. Go to Source Images captured by NASA’s Parker Solar Probe as the spacecraft made its record-breaking closest approach to the sun in December 2024 have now revealed new details about how solar magnetic fields responsible for space weather escape from the sun—and how sometimes they don’t. Go to Source |
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