We now know more on the origins of weird duck-shaped comet 67P
One of the weirdest comets we’ve seen formed from tiny pebbles that trace back to the start of our solar system – which may tell us more about how planets are made
Boiling water on Mars could make the planet’s sand levitate
In Martian summer, the combination of warm temperatures and a thin atmosphere make any liquid water on the surface boil, which can let dust hover across the ground
We may have just seen the first comet from another solar system
An icy comet just hurtled past the sun on a strange path that suggests it came from outside our solar system, making it the first such interloper we've ever spotted
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
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
Watching Cassini’s last moments from inside NASA mission control
The Cassini team was at once somber and excited as they watched the spacecraft’s radio heartbeat flicker out. Mika McKinnon joined them to say goodbye
Final pictures from Cassini as probe smashes into Saturn
Say goodbye to humanity’s outpost at Saturn with a look at Cassini’s final images before it was swallowed by Saturn’s atmosphere
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
Tears for Cassini: why it’s OK to well up over a lump of metal
Expect more of the modern phenomenon of mass mourning for a machine when the space probe Cassini makes its death dive into Saturn, says Joelle Renstrom