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.
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'Tron Ares' debuts on streaming today: Here's how to watch Jared Leto's sci-fi AI blockbuster
Jared Leto's sci-fi flick hits the Disney+ streaming grid starting January 7.
Big and Bright, Jupiter Beckons in January
Jupiter's having a special moment! Don't miss the giant planet at its best when it reaches opposition this week.
January belongs to Jupiter: See the king of planets in the night sky this month
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.
How the Evidence for Alien Life on K2-18 b Evaporated
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.
Astrophotographer captures rare footage of the Hubble Telescope crossing the sun (video)
The Hubble Telescope appears as a tiny silhouette during a perfectly timed solar transit captured from Puerto Rico.
By Jove: Jupiter Reaches Opposition for 2026
Jupiter enters the evening sky and dominates the night.
Snow-covered Amsterdam
Image: This image, captured by the Copernicus Sentinel-2 mission on 6 January 2026, shows Amsterdam in the Netherlands blanketed in snow.
I thought I knew the night sky, but what I saw from the Canary Islands left me speechless
From volcanic landscapes to world-class observatories, a journey through the Canary Islands reveals a night sky unlike anything I'd seen before.
NASA Perseverance rover sees megaripples on Mars | Space photo of the day for Jan. 7, 2026.
Another view from Perseverance shows how windswept Mars' landscape truly is.
Winning the Red Planet race: Returning Mars samples before China should be a top US priority, experts say
"The Chinese may well beat the U.S. with a grab sample."
Sandblasting on Mars
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.
Sentinel-1's decade of essential data over shifting ice sheets
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.
Does Free Will Exist? Part 1: The Clockwork Universe
This is Part 1 in a series on the physics of free will.
Hubble Telescope spies 'wake' of supergiant Beutelgeuse's hidden companion star
Using new observations from the Hubble Space Telescope and observatories on Earth, scientists have confirmed the existence of Betelgeuse's elusive companion star, named Siwarha.
Astronomers Discover a Bright Supernova Using Gravitational Lensing for the First Time
Gravitational Lensing is a vital tool for astronomers to observe objects that are too distant or faint (or both) to be resolved by current instruments. This method leverages a prediction from Einstein's Theory of General Relativity, namely that massive objects alter the curvature of spacetime. When a "lens" comes into view, its gravitational field bends and amplifies light from more distant objects. In a recent study, a team of astronomers used a combination of ground-based telescopes to discover the first spatially resolved, gravitationally lensed supernova.
As Puzzling As A Platypus: The JWST Finds Some Hard To Categorize Objects
The platypus is one of evolution's loveable, oddball animals. The creature seems to defy well-understood rules of biology by combining physical traits in a bizarre way. They're egg-laying mammals with duck bills and beaver-like tails, and the males have venomous spurs on their hind feet. In that regard, it's only fitting that astronomers describe some newly-discovered oddball objects as 'Astronomy's Platypus.'
SpaceX stacks Super Heavy booster ahead of Starship megarocket's 12th test flight
SpaceX recently stacked the giant Super Heavy booster that will help launch the upcoming 12th test flight of the company's Starship megarocket.
Saros: Release date, trailers, and everything we know about PlayStation's next sci-fi adventure
Roguelite structure, mysterious narrative, and breakneck third-person shooter action come together once again in Housemarque's Saros.
NASA's Curiosity rover sends stunning new panorama from high on Mars' Mount Sharp
NASA's Curiosity rover has sent back a striking new "postcard" from high on the slopes of Mount Sharp, offering a dramatic look at the rugged Martian landscape it's been exploring for more than a decade.
The Galaxy That Never Was
We may not know what dark matter is, but that hasn't stopped scientists from trying to understand its role in the Universe. The Lambda-Cold Dark Matter (CDM) model is the standard model that explains the cosmos the best, although it's not the only model. It makes a number of predictions about dark matter and researchers look for opportunities to test those predictions. The results either help confirm or deny the model.
