Longtime NASA astronaut Don Pettit is set to return from his fourth trip to space on Saturday night. Here are some of his ...

Even though Venus moves between the Earth and sun every 19.5 months, it becomes visible after sunset and before sunrise only around every eight years, according to EarthSky. Typically, Venus orbits ...

The image of India stands out for the display of city lights, showing the densely populated parts of the country.

A new image has emerged of the Red Planet rising above the lunar limb after being occulted by the moon in January.

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