Space
A space rock called Kamoʻoalewa may be a piece of the moon
New observations reveal the possible origins of a mysterious object called Kamoʻoalewa. It could be the wreckage from an ancient impact on the moon.
Planetary Science
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A decrease in Earth’s reflectance shows our planet is absorbing more solar radiation, but it’s not clear if the trend will last.
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AstronomyChina’s lunar rock samples show lava flowed on the moon 2 billion years ago
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AstronomySpace rocks may have bounced off baby Earth, but slammed into Venus
New simulations suggest a way to help explain dramatic differences between the sibling worlds.
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Planetary ScienceNASA’s Perseverance rover snagged its first Martian rock samples
Two tubes of stone drilled from a basalt rock nicknamed Rochette are the first from Mars slated to eventually return to Earth.
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Planetary Science50 years ago, astronomers were chipping away at Pluto’s mass
Prior to the discovery of Pluto’s moon Charon, astronomers struggled to pin down the dwarf planet’s mass.
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AstronomyThe definition of planet is still a sore point – especially among Pluto fans
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Planetary ScienceSee some of the most intriguing photos from NASA’s Perseverance rover so far
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SpaceJupiter’s intense auroras superheat its upper atmosphere
Jupiter’s hotter-than-expected upper atmosphere may be caused by high-speed charged particles slamming into the air high above the poles.