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.
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.
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.
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.
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?
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.
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.
