NEOWISE, NASA’s retired infrared telescope, has tracked numerous near-Earth objects and discovered a rare comet since 2013.
Comets masquerading as asteroids are being found in increasing numbers, with 14 now known in the asteroid belt.
The first dark comet—a celestial object that looks like an asteroid but moves through space like a comet—was reported less ...
Nov. 13, 2024 — An asteroid struck Mars 11 million years ago and sent pieces of the red planet hurtling through space. One of these chunks of Mars eventually crashed into the Earth and is one of ...
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NASA Researchers Discover More Dark Comets
These celestial objects look like asteroids but act like comets now come in two flavors. The first dark comet — a celestial ...
NASA's new study on comet 67P suggests comets may have supplied water to Earth's oceans, challenging previous theories and ...
Scientists have reevaluated the water composition of Comet 67P, finding it surprisingly similar to Earth's oceans. This challenges previous studies suggesting cometary water was too deuterium-rich.
Water. All life on Earth requires it in some way or another, and it's hard to miss that roughly 70% of our planet's surface ...
Recent studies show comet dust influenced earlier measurements of water’s origins on Earth, challenging previous findings.
“A wave of comet and asteroid collisions with the solar system’s inner planets 4 billion years ago would have made this ...
The object, discovered in 2021 and given the temporary name 2021 L4, orbits between Mars and Jupiter in the main asteroid ...
Scientists say cometary dust affects interpretation of spacecraft measurements, reopening the case for comets as potential ...