The Chicxulub asteroid impact that wiped out the dinosaurs likely released far more climate-altering sulfur gas into the atmosphere than originally thought, according to new research.

A new study makes a more refined estimate of how much sulfur and carbon dioxide gas were ejected into Earth’s atmosphere from vaporized rocks immediately after the Chicxulub event.

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Astronomers from the Minor Planet Center sent out an announcement today, hoping for astronomers to do followup observations on the comet C/2017 U1 PANSTARRS. That’s because this strange comet seems to be on a trajectory that originated outside our Solar System.

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By: Kelly Beatty

For centuries, skywatchers have chronicled the comings and goings of thousands of comets. Every one of them has come from someplace in our own solar system, either the Kuiper Belt beyond Neptune or the much more distant Oort Cloud at the fringes of the Sun’s realm.

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Astronomers at Lowell Observatory observed comet 41P/Tuttle-Giacobini- Kresak last spring and noticed that the speed of its rotation was quickly slowing down. A research team led by David Schleicher studied the comet while it was closer to the Earth than it has ever been since its discovery.

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The planet Mars shares its orbit with a handful of small asteroids, the so-called Trojans. Among them, one finds a unique group, all moving in very similar orbits, suggesting that they originated from the same object. But the mechanism that produced this “family”

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Curtin University planetary scientists have shed some light on the evolution of asteroids, which may help prevent future collisions of an incoming ‘rubble pile’ asteroid with Earth.

The scientists studied two incredibly small particles brought back to Earth from the asteroid Itokawa,

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At the 49th Annual Division for Planetary Sciences Meeting in Provo, Utah, astronomers led by Vishnu Reddy at the University of Arizona Lunar and Planetary Laboratory confirm the true nature of one of Earth’s companions on its journey around the Sun.

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Fewer large near-Earth asteroids (NEAs) remain to be discovered than astronomers thought, according to a new analysis by planetary scientist Alan W. Harris of MoreData! in La Canada, California. Harris is presenting his results this week at the 49th annual meeting of the American Astronomical Society’s Division for Planetary Sciences in Provo,

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Studies of craters in the Baltics (Estonia) are giving insights into the many impacts that have peppered the Earth over its long history. In southeastern Estonia, scientists have dated charcoal from trees destroyed in an impact to prove a common origin for two small craters,

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How did life on Earth begin? A study out Monday backs the theory that meteorites splashing into warm ponds leached essential elements that gave rise to the building blocks of life billions of years ago.

The report is based on “exhaustive research and calculations”

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