Heat radiating from the young Earth could help solve the more than 50-year-old mystery of why the far side of the moon, which faces away from Earth, lacks the dark, vast expanses of volcanic rock that define the face of the Man in the Moon as seen from Earth, researchers say.
Enjoy some of the most inspiring, beautiful and down-right stunning photos from our adventures in space this past week.
Some of Mars' lava fields may actually be massive mud flows, indicating that they weren't created by ancient volcanic activity at all.
The hunt for the hypothetical Planet X has been fruitless so far, but that doesn't mean astronomers are calling it off.
Through a predicted celestial dance, an asteroid drifted in front of a distant star and gave astronomers an unprecedented solar system discovery.
After a decade of searching, astronomers have found a second dwarf-like planet far beyond Pluto and its Kuiper Belt cousins, a presumed no-man’s land that may turn out to be anything but.
It's been 40 years since we first saw Mercury up close, and the flyby raised more questions than it answered.
If your sky is clear tonight (Feb. 10), be sure to check out the southeast sky about an hour or so after sundown for an eye-catching site: Jupiter and the moon shining together.
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