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Planetary Sciences

News 17 August 2021

Ejecta Discovered Near Site of Ancient Meteorite Impact

South Africa’s Vredefort impact structure is the largest on the planet, and researchers have now discovered the first proximal ejecta possibly deriving from the cataclysmic impact.

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Planetary Sciences

News 5 August 2021

Glassy Nodules Pinpoint a Meteorite Impact

Researchers working in Chile’s Atacama Desert have collected thousands of “atacamaites” that suggest a meteorite struck the region roughly 8 million years ago.

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Planetary Sciences

News 22 July 2021

Thousands of Stars View Earth as a Transiting Exoplanet

Researchers have identified more than 2,000 stars whose past, present, or future vantage points afford a view of Earth passing directly in front of the Sun, a geometry useful for pinpointing planets.

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Planetary Sciences

News 13 July 2021

A Remarkably Constant History of Meteorite Strikes

Researchers dissolve chunks of the ancient seafloor to trace Earth’s impact history and find that colossal clashes between asteroids don’t often trigger an uptick in meteorite strikes.

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Planetary Sciences

News 21 June 2021

Gap in Exoplanet Size Shifts with Age

Smaller planets are scarcer in younger systems and larger planets are lacking in older systems, according to new research that analyzed hundreds of exoplanets.

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Biogeosciences

News 2 June 2021

Species of Feces Help Phytoplankton Feed Itself

The unicellular plants more readily take up iron in the presence of salp feces than in krill feces, an experiment in Antarctica reveals.

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Space Science & Space Physics

News 24 May 2021

Record-Setting Flare Spotted on the Nearest Star to the Sun

Proxima Centauri recently let loose a blast of radiation, and ground- and space-based telescopes detected the record-setting event at wavelengths ranging from radio to the ultraviolet.

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Hydrology, Cryosphere & Earth Surface

News 18 May 2021

Laser Flashes Shed Light on a Changing Arctic

An ongoing project in northern Alaska is using pulses of laser light to monitor anthropogenic activity, ice quakes, and marine wildlife.

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Atmospheric Sciences

News 12 May 2021

The Who, What, When, Where, and Why of the Polar Vortex

Here’s a rundown of what this atmospheric phenomenon really is and why it matters.

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Ocean Sciences

News 29 April 2021

Ocean Sensors Record Rare Triple Tsunami near New Zealand

A new suite of DART buoys in the South Pacific Ocean spotted waves set in motion by three tsunamigenic earthquakes that occurred within hours of one another.

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