In 2021, NASA gave the all-clear to another potentially worrisome asteroid, Apophis, after new telescope observations ruled out any chance of it hitting Earth in 2068. It’s way too soon to fret over ...

The four-planet lineup that began in January concludes by mid- to late February, as Saturn sinks increasingly lower in the ...

Take advantage of a special 6-7 planet alignment from Earth's perspective. Planets 'line up' in the skies over California in ...

Duke took the flags with him to the Moon on Apollo 16 in 1972. “We are grateful to General Duke for this generous ...

Four planets will be widely visible to the naked eye through part of February, but calling them a 'planetary alignment' may not be the full picture.

ESA's Solar Orbiter captured views of the planet Mercury passing in front of the Sun. Multiple instruments aboard the ...

To get somewhere in outer space, you can’t exactly drive in a straight line. Orbits are tricky things, and sending a probe to ...