A shell of icy objects at the edge of the solar system known as the Oort cloud has a pair of spiral arms that resemble a miniature galaxy, new research suggests.
A very rare treat is about to grace Earth's night skies.
A rare full seven-planet alignment will be visible in the early night sky between Feb. 22 and 28. We have the tips you need ...
The mysterious Oort cloud is the source of many of our solar system's comets, but astronomers still have no idea what it ...
NASA's Pioneer 11 spacecraft left the solar system! This was the second spacecraft to travel beyond the planetary part of our ...
The Sun isn’t just a distant ball of fire—it’s constantly bombarding Earth with charged particles in the form of solar wind. NASA’s PUNCH mission is set to capture this invisible force like never ...
The view was acquired on Sept. 14, 2017 at 19:59 UTC (spacecraft event time). The view was taken in visible light using the ...
Astronomers and amateur stargazers will be in for a treat the last week of February when a seventh planet will join six others in a planetary parade.
Mars, Venus, Jupiter, Saturn and Mercury will shine bright enough for the naked eye to see, and you can catch glimpses of Uranus and Neptune with binoculars or a telescope.
Throughout January and February, skywatchers venturing out in the early evening can see six planets in our solar system ...
All of Earth's planetary neighbors are about to be visible in the night sky next week – though you may need binoculars to see ...
Because they're surrounded by foul-smelling gases that are incompatible with the human sense of smell, living on the surface ...
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