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…

How we could make oxygen on Mars, plus fuel to get home

On Mars oxygen and fuel are in short supply, but there might be a way to…

How we could make oxygen on Mars, plus fuel to get home

On Mars oxygen and fuel are in short supply, but there might be a way to…

Strangest star: 6 things we didn’t know about the sun

With its fiery rains, speedy magnetic flips and an atmosphere that defies the laws of physics…

Possible exomoon may be an ocean-covered world as big as Saturn

The exomoon candidate found in July is a real oddity – early calculations suggest it’s huge…

Possible exomoon may be an ocean-covered world as big as Saturn

The exomoon candidate found in July is a real oddity – early calculations suggest it’s huge…

Dark energy survives neutron star crash test while rivals fail

We saw gravitational waves and light at the same moment from a neutron star merger, which…

Volcanoes that spew stretchy ice could make dwarf planets bright

Something strange is happening on dwarf planets Eris and Makemake. They’re tiny and cold, but they…

Volcanoes that spew stretchy ice could make dwarf planets bright

Something strange is happening on dwarf planets Eris and Makemake. They’re tiny and cold, but they…

Dark energy survives neutron star crash test while rivals fail

We saw gravitational waves and light at the same moment from a neutron star merger, which…