Slingshot around Titan is the beginning of the end for Cassini
The Cassini spacecraft is passing by Titan on its final nosedive into Saturn. Plenty has been revealed about Saturn’s largest moon on Cassini’s 20-year mission
Low-oxygen dwarf galaxy shows us how the early universe looked
A star factory with the lowest oxygen level ever seen in such a galaxy could help us understand how the elements were distributed after the big bang
The sun just belched out the strongest solar flare in 12 years
If your GPS has been acting funny, take it up with the sun. Our star has released the most powerful solar flare since 2005
Some TRAPPIST-1 planets may have the right conditions for water
Water on the planets nearest the TRAPPIST-1 star would be destroyed by UV radiation but it could survive on the cooler worlds in the habitable zone
Weird ancient burst of light in the sky turns out to be a nova
Six centuries ago, Korean astronomers recorded a bright spot in the night sky. A 25-year hunt for that star has settled a debate about how classical novae behave
We’ve just seen 15 new mysterious cosmic radio bursts from space
Breakthrough Listen detected more radio pulses from the famous repeating source FRB 121102. They’re higher frequency than previous ones but we still don’t know what causes them
Wonky signals from distant stars could be sign of exocomets
Astronomers looking at two stars 800 light years away say they may have found the first comets beyond our solar system
It could be snowing on Mars right now
The Red Planet may have had intense snowstorms long ago when it was wetter, but a model shows it could still have violent snowfall at night when the clouds cool
Tethered satellites could see the moon’s weird swirls up close
The moon has bright coils of dust we can’t study without getting up close. A NASA proposal would send two satellites tied together to dangle over the surface
Moon’s magnetic field lasted twice as long as we thought it did
Lunar rock shows the moon’s magnetic field lasted a billion years longer than we thought, which may help us understand how planets keep their protective fields