Our planet's closest and brightest neighbor will pass approximately between the Earth and sun this week, in what's called an ...

Despite the bounce and subsequent expansion, nothing can leave the event horizon, so it expands into a new region of ...

Astronauts Suni Williams and Butch Wilmore made splashdown on Earth on Tuesday after spending nine months in space. A SpaceX crew with replacements for the two astronauts arrived at the ...

but will have to compete with morning twilight over the eastern horizon. The ringed planet completes one orbit around the sun every 29.4 Earth years. During this cycle, the visibility of Saturn's ...