Friday, February 27, 2026

6 Million Years Ago Something Slammed Into Modern-Day Brazil

These tektites found in Brazil are the evidence of an ancient impact. They're pebble-sized pieces of glass formed in the heat of a collision. The impact occurred about 6 million years ago and spread tektites over three Brazilian provinces. Image Credit: Álvaro Penteado Crósta/IG-UNICAMP

Researchers in Brazil have discovered another tektite field. Tektites are gravel-sized chunks of natural glass formed by impacts and spread over a wide area. Their presence indicates that a powerful impact occurred 6 million years ago.



JWST Digs Into the Uranian Ionosphere

JWST's NIRSpec instrument detected two bright auroral bands near Uranus’s magnetic poles, together with reduced emission and ion density in part of the region between the two bands (a feature likely linked to transitions in magnetic field lines). Credit: ESA/Webb, NASA, CSA, STScI, P. Tiranti, H. Melin, M. Zamani (ESA/Webb)

Uranus is a planet that seems to roll around on its side as it orbits the Sun. That's because it's tipped over, with an axial tilt of 97.8 degrees. That weird tilt gave the James Webb Space Telescope (JWST) a chance to probe the ionosphere using the Near Infrared Spectrometer (NIRSpec) instrument. An international team of astronomers used the data to map the vertical structure of that region and detect faint auroral displays.



Thursday, February 26, 2026

A Method for Extracting Oxygen from Extraterrestrial Soils Just Passed a Major Test

A solar concentrator is tested as part of the Carbothermal Reduction Demonstration (CaRD) project, which aims to produce oxygen from simulated lunar regolith for use at the Moon’s south pole. Credit: NASA/Michael Rushing

NASA’s Carbothermal Reduction Demonstration (CaRD) project completed an important step toward using local resources to support human exploration on the Moon.



Europa and Other Jovian Moons May Have Formed With Their Own Supply of Life's Building Blocks

This graphic shows how complex organic molecules could've formed in the Solar System's protoplanetary disk. UV radiation drives their formation, and the molecules then migrated through the disk. New research shows that the same thing happened in Jupiter's circumplanetary disk, and that as the Galilean moons formed, they formed with some of life's molecular building blocks. Image Credit: SwRI

Complex Organic Molecules (COMs) are important building blocks for life. They can form in space and be delivered to planets. But new research shows some of them can form in circumplanetary disks where moons form, boosting the prospects for life in Europa's ocean.



Into Totality: Our Complete Guide to the March 3rd Total Lunar Eclipse

The true color hues of the November 8th, 2022 total lunar eclipse. Credit: Eliot Herman.

If skies are clear, don’t miss one of the top astronomical events of the year this coming Tuesday, March 3rd, as the Moon passes through the Earth’s shadow in a total lunar eclipse. This will be a fine leisurely affair centered around the Pacific Ocean region, with totality lasting almost an hour in duration. For many observers worldwide, this is the last total lunar eclipse until late 2028 and mid-2029.



Wednesday, February 25, 2026

How giant galaxies could form just 1.4 billion years after the Big Bang

Clusters of young galaxies in the early Universe that later grow into large clusters are called protoclusters. Credit & ©: N.Sulzenauer/MPIfR

The existence of massive, elliptical galaxies in the early universe has puzzled astronomers for two decades. An international team led by Nikolaus Sulzenauer and Axel Weiß from the Max Planck Institute for Radio Astronomy (MPIfR) used data from the Atacama Large Millimeter/submillimeter Array (ALMA) to shed light on this open question of galaxy formation. They studied one of the most spectacular galaxy aggregations in great detail and published their results in the current issue of The Astrophysical Journal.



What Causes Those Snowmen in Space?

This image was taken by NASA's New Horizons spacecraft on Jan. 1st, 2019, during a flyby of Arrokoth (2014 MU69). Credit: NASA

Astronomers have long debated why so many icy objects in the outer solar system look like snowmen. Michigan State University researchers now have evidence of the surprisingly simple process that could be responsible for their creation. Jackson Barnes, an MSU graduate student, has created the first simulation that reproduces the two-lobed shape naturally with gravitational collapse. His work is published in the Monthly Notices of the Royal Astronomical Society.