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What are the cosmic voids made of?

Now that we have tools to find vast numbers of voids in the universe, we can finally ask…well, if we crack ’em open, what do we find inside?

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India space agency launches its heaviest satellite

India launched its heaviest ever communication satellite on Sunday, the latest step in the country’s ambitious space program.

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How to spot November’s supermoon, the closest of the year

The moon will look slightly bigger and brighter Wednesday night during the closest supermoon of the year.

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China’s Shenzhou 21 docks with space station, sets the country’s own speed record

China announced Saturday that its Shenzhou 21 spaceship docked with China’s space station with its latest three rotation crew at the country’s own record speed after a successful launch.

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NASA rejects Kardashian’s claim Moon landing ‘didn’t happen’

NASA hit back on Thursday at reality TV star Kim Kardashian’s claim that the 1969 moon landing “didn’t happen,” a theory consistently debunked over decades.

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China sends astronauts—and mice—on its latest space station mission

China said Saturday that it successfully launched the Shenzhou-21 spaceship on a mission to the country’s orbiting space station, sending its newest rotation of three astronauts—along with four mice.

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Muscle tissue from a 3D printer—produced in zero gravity

Human health is the Achilles heel of space travel. Researchers at ETH Zurich have now succeeded in printing complex muscle tissue in zero gravity. This will enable drugs for space missions to be tested in the future.

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Rapid brightening of interstellar comet 3I/ATLAS as it nears sun surprises scientists

An interstellar comet that originated outside our solar system has just made its closest pass to the sun, brightening dramatically and rapidly as it did so. The reason for the sudden extreme activity is currently puzzling scientists.

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Parabolic flight experiment highlights flame dynamics in microgravity

Casting a swirling shadow, a glowing candle flame sways eerily before flaring up once more. As ghostly as it looks, this flame dance is not the result of any force—paranormal or otherwise—but rather the lack of one: gravity.

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A mundane universe and the rarity of advanced civilizations

How could the principle of “radical mundanity” proposed by the Fermi paradox help explain why humans haven’t found evidence of extraterrestrial technological civilizations (ETCs)? This is what a recent study posted to the arXiv preprint server hopes to address as a lone researcher investigated the prospect of finding ETCs based on this principle. This study […]

The keen-eyed Vera Rubin Observatory has discovered a massive stellar stream

The Vera Rubin Observatory (VRO) hasn’t yet begun its much-anticipated Legacy Survey of Space and Time. But it saw its first light in June 2025, when it captured its Virgo First Look images as part of commissioning its main camera. Those images are a sample of how the observatory will perform the LSST and feature […]

VLT Survey Telescope captures spooky bat signal in the sky

A spooky bat has been spotted flying over the European Southern Observatory’s (ESO’s) Paranal site in Chile, right in time for Halloween. Thanks to its wide field of view, the VLT Survey Telescope (VST) was able to capture this large cloud of cosmic gas and dust, whose mesmerizing appearance resembles the silhouette of a bat. […]

The empty search for dark matter

What if I told you that while you can’t see dark matter, maybe you can hear it? I know, I know, it sounds crazy…and it is crazy. But it’s crazy enough that it just might work. It’s a real life experiment, called the…let me see here…the Cryogenic Rare Event Search with Superconducting Thermometers, or CRESST—that’s […]

We’re putting lots of transition metals into the stratosphere. That’s not good.

We successfully plugged the hole in the ozone layer that was discovered in the 1980s by banning ozone-depleting substances such as chlorofluorocarbons (CFCs). But, it seems we might be unintentionally creating another potential atmospheric calamity by using the upper atmosphere to destroy huge constellations of satellites after a very short (i.e. 5 year) lifetime.

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India space agency to launch its heaviest satellite

India’s space agency will launch its heaviest ever communication satellite on its largest launch vehicle on Sunday, its latest step in an ambitious space and technology drive.

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