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"I'll always remember the first time I saw those iridescent clouds and was sure at first it was some color artifact." ...

The above image shows a 20-meter-long chunk of frozen carbon dioxide falling off a cliff. Rising temperatures during the ...

Two such lunar canyons, Vallis Schrödinger and Vallis Planck, stretch over 270 km (168 miles) each, with depths of 2.7 km ...

This image was taken by the Mars Reconnaissance Orbiter (MRO ... Inca City' on Mars in new satellite photos Mars has four seasons similar to those on Earth. That's because Mars' orbit spins ...

The strange square was first noticed in images taken by NASA’s Mars Global Surveyor (MGS), an orbiter that conducted ... of fracturing and erosion. On Earth, similar formations have been ...

Because the moon is so close to Earth relative to Mars ... Editor's Note: If you snap a good photo of the moon near Mars and would like to share it with Space.com's readers, send your photo ...

But, since President Donald Trump took office in January, the moon rock collected during the iconic Apollo missions has been noticeably absent. Recent photos ... from Earth to Mars – perhaps ...

According to astronomers, it was possible to observe the pair at 4:00 in the morning. Interestingly, in some parts of the Earth, Mars actually disappears behind the Moon before reappearing on the ...