The curious minds at What If reveal a planet scientists found that could host alien life, exploring atmosphere, water, and potential biology. Iran vows "unprecedented" retaliation to US attack A ...

It's one of the biggest unanswered questions in science: are there aliens out there, and if so, where are they hiding? Now, a discovery by NASA has raised the tantalising possibility that we're not ...

Getting astronauts to Mars is only half the mission — the real problem is bringing them back. NASA engineers are designing the Mars Ascent Vehicle (MAV), a rocket that must launch from the surface of ...