Robin Wordsworth re-creates the atmosphere of ancient Mars

Visitors to the village of Drumnadrochit, on the western shore of Scotland’s murky Loch Ness, come to see the nearby ruins of Urquhart Castle or to chance a glimpse of…

NASA’s DART spacecraft just smashed into an asteroid — on purpose

Mission control rooms rarely celebrate crash landings. But the collision of NASA’s DART spacecraft with an asteroid was a smashing success. At about 7:15 p.m. EDT on September 26, the…

Here is the first direct look at Neptune’s rings in more than 30 years

Humankind is seeing Neptune’s rings in a whole new light thanks to the James Webb Space Telescope. In an infrared image released September 21, Neptune and its gossamer diadems of…

Saturn’s rings and tilt might have come from one missing moon

A single, doomed moon could clear up a couple of mysteries about Saturn. This hypothetical missing moon, dubbed Chrysalis, could have helped tilt Saturn over, researchers suggest September 15 in…

Passing through the Milky Way’s arms may have helped form Earth’s solid ground

Earth’s journey through the Milky Way might have helped create the planet’s first continents. Comets may have bombarded Earth every time the early solar system traveled through our galaxy’s spiral…

The James Webb telescope spotted CO2 in an exoplanet’s atmosphere

The James Webb Space Telescope has gotten the first sniff of carbon dioxide in the atmosphere of a planet in another solar system. “It’s incontrovertible. It’s there. It’s definitely there,”…

Not one, but two asteroids might have slain the dinosaurs

Chicxulub, the asteroid that wiped out most dinosaurs, might have had a little sibling. Off the coast of West Africa, hundreds of meters beneath the seafloor, scientists have identified what…

Oort cloud comets may spin themselves to death

Comets from the solar system’s deep freezer often don’t survive their first encounter with the sun. Now one scientist thinks he knows why: Solar warmth makes some of the cosmic…

Asteroid impacts might have created some of Mars’ sand

Sand on Earth is continuously being created by the slow erosion of rocks. But on Mars, violent asteroid impacts may play an important role in making new sand. As much…

How balloons could one day detect quakes on Venus

The balloon was floating over the Pacific Ocean when the first sound waves hit. For 11 seconds, a tiny device dangling beneath the large, transparent balloon recorded sudden, jerky fluctuations…