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Astronomy Jun 8, 2021

Earth's meteorite impacts over past 500 million years

For the first time, a unique study conducted at Lund University in Sweden has tracked the meteorite flux to Earth over the past 500 million years. Contrary to current theories, researchers have determined that major collisions ...

Astrobiology May 21, 2021

Mushrooms on Mars? Five unproven claims that alien life exists

A recent study claims to have found evidence for mushroom-like life forms on the surface of Mars. As it happens, these particular features are well known and were discovered by cameras aboard Nasa's Mars Exploration Rover ...

Planetary Sciences May 14, 2021

Solar wind from the center of the Earth

High-precision noble gas analyses indicate that solar wind particles from our primordial Sun were encased in the Earth's core over 4.5 billion years ago. Researchers from the Institute of Earth Sciences at Heidelberg University ...

Space Exploration May 14, 2021

Where do meteorites come from? We tracked hundreds of fireballs streaking through the sky to find out

If asked where meteorites come from, you might reply "from comets." But according to our new research, which tracked hundreds of fireballs on their journey through the Australian skies, you would be wrong.

Planetary Sciences Apr 29, 2021

Meteorites reveal magnetic record of protoplanet churn

If you stumble upon an unusual rock that could be a meteorite, do not place a magnet on it to see if it's magnetic—you'd end up erasing 4.5 billion years of magnetic history. Meteorites are remnants of our solar system's ...

Astrobiology Apr 29, 2021

Meteorite amino acids derived from substrates more widely available in the early solar system

Scientists have recreated the reaction by which carbon isotopes made their way into different organic compounds, challenging the notion that organic compounds, such as amino acids, were formed by isotopically enriched substrates. ...

Space Exploration Apr 23, 2021

Asteroid that hit Botswana in 2018 likely came from Vesta

An international team of researchers searched for pieces of a small asteroid tracked in space and then observed to impact Botswana on June 2, 2018. Guided by SETI Institute meteor astronomer Peter Jenniskens, they found ...

Astrobiology Apr 22, 2021

Mars has right ingredients for present-day microbial life beneath its surface, study finds

As NASA's Perseverance rover begins its search for ancient life on the surface of Mars, a new study suggests that the Martian subsurface might be a good place to look for possible present-day life on the Red Planet.

Space Exploration Apr 21, 2021

Scientists find carbon-rich liquid water in ancient meteorite

Water is abundant in the solar system. Even beyond Earth, scientists have detected ice on the moon, in Saturn's rings and in comets, liquid water on Mars and under the surface of Saturn's moon Enceladus, and traces of water ...

Astronomy Apr 15, 2021

Baked meteorites yield clues to planetary atmospheres

In a novel laboratory investigation of the initial atmospheres of Earth-like rocky planets, researchers at UC Santa Cruz heated pristine meteorite samples in a high-temperature furnace and analyzed the gases released.

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