What is the longest-period comet we know about?
Hint: it doesn’t end well for Earth…
The Polish astronomer who revolutionised our understanding of the Earth’s place in the Solar System.
Would any of the proposed plans to capture asteroids affect the Earth’s orbit?
Gemma Lavender gets to the bottom of this question for us.
The science of re-entry explained
De-orbited in 2001, we find out if there are still pieces of the Mir space station in space
The decision will allow Juno to accomplish its science goals, while avoiding the risk of a previously-planned engine firing that would have reduced the probe’s orbital period to 14 days
NASA’s Hubble Space Telescope has confirmed the existence of a planet orbiting the OGLE-2007-BLG-349 system
The space rocks are thought to be destroyed in a drawn out, long hot fizzle, much farther from the Sun than previously thought
We take a look at the answer to this intriguing question
The object, which was considered a potentially hazardous object, will pass the Earth just 25 per cent beyond the Moon’s orbit
The Gemini Observatory has given us our best view yet of an exoplanet moving in its orbit around a distant star
We find out how vast our solar neighbourhood really is
This small Saturnian moon is one of the most heavily cratered bodies in the Solar System, including one massive impact…
We find out if we’re likely to lose our Moon one day
How do we know for sure that this distant world is an exoplanet and not a comet or an asteroid?
Find out why manmade satellites don’t crash into each other all the time
How many of the artificial satellites orbiting our planet can you see with the unaided eye?
How many companies and agencies are building vehicles to take humans into space?