Astronomers are now regularly detecting planets thousands of light years from Earth – but have we missed one in our own Solar System?

Earth’s orbit around the Sun is slightly elliptical, which means our distance from the Sun varies over the course of the year – and that brings effects that are fascinating to capture. The variation s

Best time to see: 10 January, 00:15 UT Altitude: 59° Location: Gemini Direction: South Features: Complex atmosphere, moons Recommended equipment: 100mm or larger Jupiter reaches opposition on 10 Janua

How many planets are there in the Solar System? It sounds like an easy question, but it’s more complex than you might think – and actually it’s one we still can’t answer. With scientists finding evide

1 Thursday The Moon’s libration makes it favourable for viewing features near the southern pole today. At 21:06 UT, Saturn’s largest moon, Titan, can be seen emerging from behind Saturn’s disc. Callis

An artist’s impression of Cha 1107-7626 accreting material ...