Blog Archives

Did the Chicxulub asteroid knock Earth’s thermometer out of the ballpark?

When the Chicxulub asteroid smashed into Earth 65 million years ago, the event drove an abrupt and long-lasting era of global warming, with a rapid temperature increase of 5 Celsius (C) that endured for roughly 100,000 years, a new study reports. The monumental event is a rare case where Earth’s systems were perturbed at a rate greater than what’s occurring now from human activity.

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Interstellar asteroid in orbit around our Sun

A new study has discovered the first known permanent immigrant to our solar system. The asteroid, currently nestling in Jupiter’s orbit, is the first known asteroid to have been captured from another star system. The work is published in Monthly Notices of the Royal Astronomical Society: Letters.

The object known as ‘Oumuamua was the last interstellar interloper to hit the First Interstellar Immigrant Discovered in the Solar Systems in 2017.

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Football field-sized asteroid shaved by Earth

An asteroid around the size of a football field zoomed by Earth on Tuesday, but at a safe distance, the US space agency NASA said.

The space rock was discovered in 2010, but only recently did astronomers determine it would not collide with our planet,

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Exiled Asteroid Discovered in Outer Reaches of Solar System

ESO telescopes find first confirmed carbon-rich asteroid in Kuiper Belt

An international team of astronomers has used ESO telescopes to investigate a relic of the primordial Solar System. The team found that the unusual Kuiper Belt Object 2004 EW95 is a carbon-rich asteroid, the first of its kind to be confirmed in the cold outer reaches of the Solar System.

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Close Call: Giant Asteroid Flies Through the Earth-Moon Orbit

With just a few hours’ notice, a relatively large asteroid whipped through the Earth-moon orbit over the weekend. You may have missed it though; humanity only learned of the asteroid hours before the flyby.

A “Tunguska-class” asteroid was first spotted by the Catalina Sky Survey out of the University of Arizona on April 14.

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A star disturbed the comets of the solar system in prehistory

About 70,000 years ago, when the human species was already on Earth, a small reddish star approached our solar system and gravitationally disturbed comets and asteroids. Astronomers from the Complutense University of Madrid and the University of Cambridge have verified that the movement of some of these objects is still marked by that stellar encounter.

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Scientists propose an asteroid nuke mission to save Earth from potential destruction.

Some might say it’s paranoid to think about an asteroid hitting Earth and wiping us out. But the history of life on Earth shows at least 5 major extinctions. And at least one of them, about 65 million years ago, was caused by an asteroid.

Preparing for an asteroid strike,

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Asteroid ‘time capsules’ may help explain how life started on Earth

In popular culture, asteroids play the role of apocalyptic threat, get blamed for wiping out the dinosaurs – and offer an extraterrestrial source for mineral mining.

But for researcher Nicholas Hud, asteroids play an entirely different role: that of time capsules showing what molecules originally existed in our solar system.

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Five Years after the Chelyabinsk Meteor: NASA Leads Efforts in Planetary Defense

A blinding flash, a loud sonic boom, and shattered glass everywhere. This is what the people of Chelyabinsk, Russia, experienced five years ago when an asteroid exploded over their city the morning of Feb. 15, 2013.

The house-sized asteroid entered the atmosphere over Chelyabinsk at over eleven miles per second and blew apart 14 miles above the ground.

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Two Small Asteroids Safely Pass Earth This Week

Two small asteroids recently discovered by astronomers at the NASA-funded Catalina Sky Survey (CSS) near Tucson, Arizona, are safely passing by Earth within one lunar distance this week.

The first of this week’s close-approaching asteroids – discovered by CSS on Feb. 4 – is designated asteroid 2018 CC.

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