Sign Up for Our Amazing Newsletter!
A daily update by email. Science news, great photos, sky alerts.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
This giant solar eruption rocked Earth, moon and Mars
A giant solar eruption from 2021 is teaching scientists how to protect astronauts. The radiation from the event struck Earth, the moon and Mars simultaneously.
August 3, 2023
Was Mars’ Olympus Mons volcano once an island?
Scientists in France have found new evidence that the largest volcano on Mars, Olympus Mons, was once a volcanic island surrounded by an ancient northern ocean.
August 2, 2023
Iridescent contrails? Rainbow contrails? Something else?
They look like iridescent contrails. But, are they? We asked Les Cowley, an atmospheric optics expert, who gave a different opinion.
August 2, 2023
Can we predict earthquakes now? No, but there’s news
It hasn't been possible before now to predict earthquakes. But 2 French researchers now claim to have discovered a way to do it.
August 2, 2023
Observing meteors: Top 10 tips for the Perseids
The 2021 Perseid meteor shower is rising to its peak and many are observing meteors. Here are our best 10 tips for watching this shower, or any other!
August 1, 2023
SpaceX wraps up Starlink launches for July
SpaceX's 6th and final Starlink launch for the month took flight from Florida at 4:01 UTC on July 28, 2023. Watch a recorded livestream and learn more here.
July 31, 2023
Sun activity archive for July 2023
Sun activity archive for July 2023. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
July 31, 2023
Parachuting beavers created a fire-resistant wetland
NASA satellite imagery showed that a creek where beavers built dams was lusher, greener, and more fire-resistant than neighboring areas without beaver dams.
July 30, 2023
Rogue planets by the trillions in our Milky Way?
A new study predicts that NASA's upcoming Roman space telescope will find 400 Earth-mass rogue planets. These worlds drift freely in space, unbound to any star.
July 30, 2023
Tigers are the biggest cats: Lifeform of the week
Tigers are huge, fierce cats that are unique and beautiful. We tell you some curious facts about them here. Plus, watch a video about tigers.
July 29, 2023
