A 300-kilometre space rock has vanished since we saw it in 1995
Don’t feel so bad for losing your keys. Astronomers somehow lost a huge space rock first seen 22 years ago – and it’s far from the first cosmic object to go missing
The 5 biggest discoveries from the hunt for gravitational waves
Detecting gravitational waves has given us a new way to observe the universe by listening to ripples in space-time. Here are five of the biggest finds from LIGO
Astronaut wee could show us how the plumes on Enceladus work
The way spaceships vent urine and water may be a good stand-in for studying how jets of vapour escape the hidden ocean on one of Saturn’s icy moons
A gaggle of 7 moons keep Saturn’s rings from breaking apart
The gravity from seven of its moons stops Saturn’s bright outer ring from spreading out and dispersing into space, according to Cassini spacecraft measurements
Distant dwarf planet near Pluto has a ring that no one expected
The tiny world Haumea has a ring, the most distant we’ve found in our solar system. This may mean rings encircle other far-off worlds in the solar system
OSIRIS-REx spacecraft zooms by Earth on its way to an asteroid
On its way to collect dust samples from the asteroid Bennu, NASA’S OSIRIS-REx spaceship will slingshot around Earth, passing 17,000 kilometres above Antarctica
Infamous three-body problem has over a thousand new solutions
A long-standing maths puzzle has 1223 new solutions, more than doubling the number of possible paths three objects can take as they orbit one another
Brown dwarfs have strong magnetic fields just like real stars
Failed stars called brown dwarfs straddle the line between big planets and small stars. An observation of a magnetic field puts another tick in the star column
Cassini takes last look at the ring patterns made by mini moons
These unusual patterns in Saturn's rings give us clues to what happens when planets are born, and may help us understand how our solar system formed
Cassini’s 10 best pictures from its 13-year voyage around Saturn
On 15 September, NASA’s Cassini spacecraft will crash into Saturn, ending its mission with a bang. New Scientist looks back at 10 of its best images