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Planetary Sciences Jan 13, 2022

Martian meteorite's organic materials origin not biological, formed by geochemical interactions between water and rock

Organic molecules found in a meteorite that hurtled to Earth from Mars were synthesized during interactions between water and rocks that occurred on the Red Planet about 4 billion years ago, according to new analysis led ...

Planetary Sciences Dec 23, 2021

Earth and Mars were formed from inner solar system material

Earth and Mars were formed from material that largely originated in the inner solar system; only a few percent of the building blocks of these two planets originated beyond Jupiter's orbit. A group of researchers led by the ...

Planetary Sciences Dec 15, 2021

Deep mantle krypton reveals Earth's outer solar system ancestry

Krypton from the Earth's mantle, collected from geologic hot spots in Iceland and the Galapagos Islands, reveals a clearer picture of how our planet formed, according to new research from the University of California, Davis.

Planetary Sciences Dec 14, 2021

Size doesn't matter: Rock composition determines how deadly a meteorite impact is

A new study has found that the minerology of the rocks that a meteorite hits, rather than the size of the impact, determines how deadly an impact it will have.

Planetary Sciences Dec 13, 2021

New research explains Earth's peculiar chemical composition

Earth's surface environment hosts large reservoirs of hydrogen (H, mainly in the form of water, H2O), nitrogen (in atmospheric N2) and carbon (mainly in carbonate rocks). H, N and C are sometimes called "volatile" elements, ...

Planetary Sciences Dec 2, 2021

Beads of glass in meteorites help scientists piece together how solar system formed

Ever since scientists started looking at meteorites with microscopes, they've been puzzled—and fascinated—by what's inside. Most meteorites are made of tiny beads of glass that date back to the earliest days of the solar ...

Space Exploration Nov 23, 2021

Analysis of Mars's wind-induced vibrations sheds light on the planet's subsurface properties

Seismic data collected in Elysium Planitia, the second largest volcanic region on Mars, suggest the presence of a shallow sedimentary layer sandwiched between lava flows beneath the planet's surface. These findings were gained ...

Earth Sciences Nov 22, 2021

Scientist reveals cause of lost magnetism at meteorite site

A University of Alaska Fairbanks scientist has discovered a method for detecting and better defining meteorite impact sites that have long lost their telltale craters. The discovery could further the study of not only Earth's ...

Planetary Sciences Nov 3, 2021

Study pinpoints likely home of Martian meteorites

Curtin University researchers have pinpointed the likely origin of a group of meteorites ejected from Mars, using a machine learning algorithm that analyses high-resolution planetary images.

Astronomy Oct 15, 2021

Scientists find evidence the early solar system harbored a gap between its inner and outer regions

In the early solar system, a "protoplanetary disk" of dust and gas rotated around the sun and eventually coalesced into the planets we know today.

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