Using NASA’s Chandra X-ray spacecraft, astronomers have performed deep X-ray observations of a galactic globular cluster known as NGC 6540. The new observational campaign, described June 1 on the preprint server arXiv, focused on disentangling the nature of a peculiar X-ray flare emitted by the cluster about two decades ago.

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To truly understand what an asteroid is made of, we need to send a probe to it. Remote sensing from ground-based telescopes, or even orbiting observatories, can only do so much. A new white paper submitted to the U.K. Space Agency’s 2035 Space Frontiers program (available on the arXiv preprint server) pitches just such a […]

Astronomers may have uncovered new details about one of the Milky Way’s most important ancient collisions. Using data from the Dark Energy Spectroscopic Instrument (DESI) and a new clustering algorithm, researchers have found evidence suggesting the famous Gaia-Sausage/Enceladus structure (GSE) has a far more complicated origin than previously thought.

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Looking somewhat like a swarm of bees returning to their hive, this NASA Hubble Space Telescope image features the galaxy cluster MACS0329-0211. Galaxy clusters like MACS0329-0211 are important signposts in the story of how the structure of the universe evolved, and are the ultimate telescopic lenses, placing gravitationally lensed galaxies from the earliest stages of […]

The United States government’s recent release of hundreds of previously classified unidentified anomalous phenomena (UAPs) cases spanning the 1940s to the present, along with the new Steven Spielberg movie, “Disclosure Day,” about extraterrestrial life, has fueled the idea that aliens are visiting Earth.

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Using the Subaru Telescope, astronomers have conducted follow-up observations of a recently discovered exoplanet known as TOI-1883 b. Results of the new observations, published June 5 on the arXiv preprint server, indicate that TOI-1883 b is a low-density super-Neptune.

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Elon Musk’s SpaceX has made awe-inspiring achievements since its founding more than two decades ago and has big ideas—colonies on Mars, orbital AI data centers, rapidly reusable rockets—for the future.

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Elon Musk is all about big numbers—millions, billions, even trillions—and there are plenty of them associated with SpaceX and Musk’s plans to take the rocket maker public.

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