On June 27, asteroid 2011 UL21 made a relatively close encounter with Earth, flying past our planet at a distance of 6.6 million kilometers (4.1 million miles), or roughly 17…
As the Moon orbits the Earth, the Earth orbits the Sun, and the Sun orbits the center of the Milky Way, oscillating up and down relative to the galactic plane…
OSIRIS-APEX emerged "unscathed" from its closest approach to our sun on January 2, scientists announced on Tuesday (May 28). The probe, originally known as OSIRIS-REXcompleted its mission to return samples…
In just under half a decade, a 1,000-foot-wide (305-meter) asteroid, named after the Egyptian god of chaos and destruction Apophis, will pass within 30,000 miles (48,300 kilometers) of Earth. Scientists…