Planets may form differently around binary stars than they do near loners like our Sun. The finding could lead to new targets in the search for alien life.

The European space agency will need both a launch vehicle and a lander platform to launch its ExoMars rover without help from Russia.

Oxygen in an ocean on Jupiter's moon Europa may be similar to oxygen in Earth's oceans. "Our research puts this process into the realm of the possible."

Researchers conclude that only certain types of planets can form moons that are large in respect to their host planets. It could narrow the search for life.

There's methane in gas plumes erupting from Enceladus. Could it be a sign that life could exist in the planet's interior?

An astronomy expert breaks down what he expects from the US government UFO report and whether humans are alone in the universe.

On this podcast episode, a former Harvard astronomer explains why he thinks aliens are more reality than fiction and why we need to be searching for them.

There's a good reason why so many scientists disagree with claims that Earth has been visited by aliens.

Methane gas in the atmosphere is a tantalising hint suggesting that life could exists on Mars.