A study of comet motions indicates that the solar system has a second alignment plane. Analytical investigation of the orbits of long-period comets shows that the aphelia of the comets, the point where they are farthest from ...
Astronomy
Sep 29, 2020
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12122
Data from Southwest Research Institute-led instruments aboard ESA's Rosetta spacecraft have helped reveal auroral emissions in the far ultraviolet around a comet for the first time.
Astronomy
Sep 21, 2020
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3088
Explaining the concept of a dust bunny to small children can be quite amusing. No, it's not actually alive. It's moving around because of really small currents of wind that we can't even see. It's mainly formed out of dead ...
Astronomy
Sep 08, 2020
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38
A permeable heart with a hardened facade—the resting place of Rosetta's lander on Comet 67P/Churyumov-Gerasimenko is revealing more about the interior of the "rubber duck" shaped-body looping around the Sun.
Space Exploration
Sep 08, 2020
1
138
When Comet NEOWISE (C/2020 F3) sped through the inner Solar System during the middle of 2020, astronomers and the general public watched in awe as this "dirty snowball" shed gas and dust into space, producing a striking show ...
Astronomy
Aug 25, 2020
0
16
The NASA/ESA Hubble Space Telescope has captured the closest images yet of the sky's latest visitor to make the headlines, comet C/2020 F3 NEOWISE, after it passed by the Sun. The new images of the comet were taken on 8 August ...
Space Exploration
Aug 21, 2020
0
631
The newly discovered comet Neowise is only visible from Earth once every 6,800 years, and photographers who want to document it seek places with high elevation and little smog or light pollution. A place like North Carolina's ...
Space Exploration
Jul 24, 2020
0
45
Comet NEOWISE is visible in an aurora-filled sky in this photo by Aurorasaurus Ambassador Donna Lach. The photo was taken early on July 14, 2020, in western Manitoba, Canada. The purple ribbon-like structure to the left is ...
Astronomy
Jul 16, 2020
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68
Astrophysicists from Far Eastern Federal University (FEFU, Russia), South Korea, and the U.S. appear in Monthly Notices of the Royal Astronomical Society, suggesting carbon indicates time comets have spent in the Solar System—the ...
Space Exploration
Jul 13, 2020
0
9
NASA's Parker Solar Probe was at the right place at the right time to capture a unique view of comet NEOWISE on July 5, 2020. Parker Solar Probe's position in space gave the spacecraft an unmatched view of the comet's twin ...
Astronomy
Jul 13, 2020
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353
A comet is a Small Solar System Body that orbits the Sun. When close enough to the Sun, a comet exhibits a visible coma (fuzzy "atmosphere"), and sometimes a tail, both because of the effects of solar radiation upon the comet's nucleus. Comet nuclei are themselves loose collections of ice, dust and small rocky particles, ranging from a few kilometers to tens of kilometers across.
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