Data from an old NASA spacecraft reveals a volcano erupted on the surface of Venus in 1991, a new study in Science says.
The two brightest planets in Earth's night sky are millions of miles apart. But due to an astronomical quirk, they appear to be engaging in a cosmic dance tonight. Now that's a moment of awe.
The two space probes will study Venus, a scorching hot world that may have once been like Earth. NASA chose the Venus missions over other candidates, such as trips to the moons of Jupiter and Neptune.
Scientists have found a gas associated with living organisms in a region of Venus' atmosphere. They can't figure out how it got there if it didn't come from life.
NASA says the two bright planets will be "a jaw-dropping one-third of a degree apart" around sunset. It's the closest they'll come in their current 24-year cycle.