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

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. from Universe Today https://ift.tt/3E8uRdK via IFTTT
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What Causes Those Snowmen in Space?

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. from Universe Today https://ift.tt/70i2l8U via IFTTT
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Curiosity Take Its Closest Look Yet At Martian Spiderwebs

When MSL Curiosity was sent to Gale Crater, one of its goals was to study boxwork ridge features on Mt. Sharp. The rover has gathered its fourth sample from the rocks, and results are on their way. Previous samples showed tantalizing evidence in favour of ancient life on Mars. But we're still waiting for the extraordinary evidence required to conclude that Mars was once inhabited. from Universe Today https://ift.tt/zJruaVb via IFTTT
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How Long Could Earth Microbes Live on Mars?

Searching for past or present life on Mars is the sole driving force behind every mission we send to the Red Planet, from orbiters to landers to rovers. However, there remains a concern in the scientific community of Earth-based microbes hitching a ride on Mars-bound spacecraft, also called forward contamination. The concern is potentially mistaking Earth microbes for Mars life or Earth microbes potentially influence samples of Mars life we might find. While NASA is dedicated to mitigating it as much as possible, could new methods help determine how long Earth-based microbes could survive on Mars, this alleviating concerns for forward contamination? from Universe Today https://ift.tt/9J0VYNC via IFTTT
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Map the Earth's Magnetic Shield with the Space Umbrella Project

NASA has announced the Space Umbrella project, in which participants will use data from NASA’s Magnetosphere Multiscale (MMS) mission to shed light on solar storms. from Universe Today https://ift.tt/MGP7Ibl via IFTTT
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NASA Telescope Spots a Young Sun-Like Star Inflating Its Astrosphere

Chandra's X-ray Space Telescope, with some help from the Hubble, spotted a young Sun-like star about 120 light-years away with a powerful stellar wind. It's carving out its astrosphere, a bubble of relatively hot gas that's pushing into the surrounding, much cooler, interstellar medium. This is the same process our Sun went through 5 billion years ago when it created the heliosphere. from Universe Today https://ift.tt/vzPBOk0 via IFTTT
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This Supernova Progenitor Hid Behind a Surprisingly Thick Veil of Carbon Dust

For the first time, astronomers have used images from the NASA/ESA/CSA James Webb Space Telescope to identify a supernova progenitor that could not be seen by any other telescope: a red supergiant that was located in a nearby galaxy. The supergiant’s surroundings were surprisingly dusty - dusty enough to render it invisible to the NASA/ESA Hubble Space Telescope. from Universe Today https://ift.tt/9uXhs1n via IFTTT
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