All of physics rests on causal determinism. It’s like…how we do physics. It IS physics.
Jupiter's ice-covered moon Europa has emerged as a prime target in the search for life in our Solar System. Its frozen surface caps an ocean that contains more water than all of Earth's combined. Because it orbits the massive gas giant Jupiter, tidal heating keeps that ocean from freezing.
At center, JAXA (Japan Aerospace Exploration Agency) astronaut and Expedition 74 Flight Engineer Kimiya Yui assists NASA astronauts Zena Cardman (left) and Mike Fincke (right), the station’s flight engineer and commander respectively, during spacesuit checks inside the International Space Station’s Quest airlock. Image: NASA
Update Jan. 8, 12:30 a.m. EST (0530 UTC): Adding new statement from NASA.
Predator: Badlands has landed on digital platforms ahead of the February 4K Blu-ray release, but still no word on the Hulu streaming release date.
Dark Matter (DM) remains one of the most daunting mysteries for astronomers, astrophysicists, and cosmologists. Six decades ago, the theory that the Universe was filled with mass that did not interact with normal matter in visible light became an accepted part of our cosmological models. And yet, all efforts to detect this mysterious matter in space or its constituent particles in a lab have produced null results. However, scientists have developed several promising methods that are helping them narrow the search for DM and measure its influence on the cosmos.
The galaxy cluster appears hotter and more mature than it should for its young age, challenging what we think we know about how these cities of galaxies form.
Over the last 25 years, a lot of Lego Star Wars sets have come and gone. These are the ones we wish would make a return.
NASA astronauts Mike Fincke and Zena Cardman will conduct a historic spacewalk outside the International Space Station on Thursday morning (Jan. 8), and you can watch the action live.
One of the critical aspects of exoplanet habitability is the long-term stability of the stars they orbit. Some stars are extremely massive and blast through their hydrogen fuel in only a few million years. Rigel, the blue supergiant in Orion, is an example of one of these. It will shine for only about 10 million years. That's not much time for life to arise on planets.
Jared Leto's sci-fi flick hits the Disney+ streaming grid starting January 7.
Jupiter's having a special moment! Don't miss the giant planet at its best when it reaches opposition this week.
Jupiter currently shines as a brilliant silvery "star" in the constellation Gemini the Twins, low in the east-northeast sky as dusk slowly fades. You really should catch the show.
It feels like every time we publish an article about an exciting discovery of a potential biosignature on a new exoplanet, we have to publish a follow-up one a few months later debunking the original claims. That is exactly how science is supposed to work, and part of our job as science journalists is to report on the debunking as well as the original story, even if it might not be as exciting. In this particular case, it seems the discovery of dimethyl sulfide in the atmosphere of exoplanet K2-18 b was a false alarm, according to a new paper available in pre-print form on arXiv by Luis Welbanks of Arizona State University and his co-authors.
The Hubble Telescope appears as a tiny silhouette during a perfectly timed solar transit captured from Puerto Rico.
Jupiter enters the evening sky and dominates the night.
Image: This image, captured by the Copernicus Sentinel-2 mission on 6 January 2026, shows Amsterdam in the Netherlands blanketed in snow.
From volcanic landscapes to world-class observatories, a journey through the Canary Islands reveals a night sky unlike anything I'd seen before.
Another view from Perseverance shows how windswept Mars' landscape truly is.
"The Chinese may well beat the U.S. with a grab sample."
Martian winds can have quite an impact. ESA’s Mars Express has spotted them whipping up sand grains and acting as a cosmic sandblaster, carving out intriguing grooves near Mars’s equator.
The extent and speed of ice moving off the ice sheets of Greenland and Antarctica into the sea – an important dynamic for climate and sea-rise modelling – has been captured over a 10-year period by satellites from the Copernicus Sentinel-1 mission.
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