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Space Science
Our Moon is full of craters, basins, and ancient lava flows. But two large lunar Grand Canyons have the same origin: a single, giant impact.
There are only four super star clusters in all the Local Group: rarities today. Here's what the youngest, the just-discovered N79, shows us.
Sixty years ago, the Soviet Union was way ahead of the USA in the space race. Then one critical event changed everything.
In November 1974, astronomers used the radio telescope at Puerto Rico’s Arecibo Observatory to send a hello to the universe.
Caption:“At this time in Mars’ history, we think CO2 is everywhere, in every nook and cranny, and water percolating through the rocks is full of CO2 too,” Joshua Murray says.
Physicists recently created Coordinated Lunar Time, a time zone for our Moon.
Comet A3, also known as Comet Tsuchinshan-ATLAS, has sprung to life since 2024's last equinox. Here's how to catch the show for yourself.
Just 460 light-years away, the closest newborn protostars are forming in the Taurus molecular cloud. Here are JWST's astonishing insights.
The recent discovery of a large cave on the Moon highlights the importance of caves not just for future space explorers but astrobiology as well.
Comparing Elon Musk's Mars rocket to NASA's new ride.
This research team is working out how to detect extraterrestrial cells in the liquid water ocean hidden beneath Enceladus’s icy crust.
To know how to protect its astronauts, NASA needs to first understand the threat.
The threats Mars astronauts face — and how NASA is working to solve them.
We normally think of dark matter as the "glue" that holds galaxies and larger structures together. But it's so much more than that.
This first-of-its-kind image offers a detailed look at the magnetic fields within the Central Molecular Zone.
Forensics has reached the final frontier, and could be used to solve future space accidents—or crimes.
In 1957, humanity launched our first satellite; today's number is nearly 10,000, with 500,000+ more planned. Space is no longer pristine.
The detection of two celestial interlopers careening through our solar system has scientists eagerly anticipating more.
For now, our Solar System's eight planets are all safe, and relatively stable. Billions of years from now, everything will be different.
NASA's Juno mission, in orbit around Jupiter, occasionally flies past its innermost large moon: Io. The volcanic activity is unbelievable.
If there’s life lurking on the moons of Saturn and Jupiter, could our instruments even detect it?
Finding it at all was a happy accident. Examining it further may help unlock the secrets hiding within the earliest galaxies of all.
The cosmic scales governing the Universe are almost unbelievably large. What if we shrunk the Sun down to be just a grain of sand?
Each December, the Geminid meteor shower puts on a show for skywatchers across Earth. With a new Moon at 2023's peak, it'll be outstanding!
When we look at our Sun, its properties are incredibly constant, varying by merely ~0.1% over time. But all stars don't play by those rules.
Considering the astronomical occupational risks, life insurance was prohibitively expensive for the first NASA astronauts.
The Universe, although violent, is filled with creation events following destructive ones. 1850 light-years away, both types are unfolding.
Some fascinating observations of K2-18b have come along with horrendous, speculative communications. There's no evidence for oceans or life.
Whether you call it 10 quintillion, 10 million trillion, or 10 billion billion, it's a 1 followed by 19 zeroes.