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Earth Sciences Aug 11, 2022

What created the continents? New evidence points to giant asteroids

Earth is the only planet we know of with continents, the giant landmasses that provide homes to humankind and most of Earth's biomass.

Planetary Sciences Aug 10, 2022

One more clue to the moon's origin

Humankind has maintained an enduring fascination with the moon. It was not until Galileo's time, however, that scientists really began study it. Over the course of nearly five centuries, researchers put forward numerous, ...

Earth Sciences Aug 10, 2022

Evidence that giant meteorite impacts created the continents

New Curtin research has provided the strongest evidence yet that Earth's continents were formed by giant meteorite impacts that were particularly prevalent during the first billion years or so of our planet's four-and-a-half-billion ...

Astronomy Aug 8, 2022

What part of a space rock survives all the way to the ground?

When a small asteroid enters Earth's atmosphere from space, its surface is brutally heated, causing melting and fragmenting. Therefore, why the rocks near the surface survive to the ground as meteorites has been somewhat ...

Planetary Sciences Aug 4, 2022

Meteorite findings shed light on origin of Earth's volatile elements

A study into the zinc isotope composition of meteorites by researchers from the University of St Andrews suggests that material from the outer solar system was an important source of volatile elements during the formation ...

Planetary Sciences Aug 4, 2022

An interstellar meteor struck Earth in 2014, and now scientists want to search for it at the bottom of the ocean

In 2014, an object crashed into the ocean just off the coast of Papua New Guinea. Data collected at the time indicated that the meteorite just might be an interstellar object, and if that's true, then it's only the third ...

Planetary Sciences Aug 2, 2022

Meteors seem to be raining down on New Zealand, but why are some bright green?

New Zealand may seem to be under meteor bombardment at the moment. After a huge meteor exploded above the sea near Wellington on July 7, creating a sonic boom that could be heard across the bottom of the South Island, a smaller ...

Planetary Sciences Jul 20, 2022

A unique stone-skipping-like trajectory of asteroid Aletai

During their entry to Earth, meteoroids and asteroids can deposit energy, causing great concerns to astrophysicists. Recent discoveries of the massive Aletai irons in Northwest China constitute the longest-known strewn field, ...

Planetary Sciences Jul 16, 2022

Scientists find oldest Martian meteorite's original home

Scientists announced Tuesday they had found the crater from which the oldest known Martian meteorite was originally blasted towards Earth, a discovery that could provide clues into how our own planet was formed.

Planetary Sciences Jul 13, 2022

There are 94 million craters on Mars. Scientists found the one this meteorite called home

In 2011, a small meteorite was found in the Sahara Desert. Designated Northwest Africa (NWA) 7034 or "Black Beauty," the blackened chunk of volcanic crystal turned out to be a little piece of Mars, flung into space by an ...

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