Neptune reaches opposition today: How to see the distant planet

Mars Sample Return: The mission that will bring home a piece of another planet. To find out what’s at stake, and how we’ll get a sample from the Red Planet, we spoke to ESA’s Dr Albert Haldemann. He’s the ExoMars Payload and Assembly, Integration and Verification Team Leader at ESA.

Spot the elusive planet Mercury at its 'greatest elongation' from the sun this evening

Planet-eating stars can be identified by their telltale chemistry