
Copernical Team
To Seitah and Back

Locked in stone: Research may answer the question of Mars' missing water

NASA's Perseverance Mars Rover Makes Surprising Discoveries

NASA 'Fires Up' Artemis RS-25 Rocket Engines with New Components

NASA Completes Upper Part of Artemis II Core Stage

Launch of GeeSAT commercial satellites fails

Watching the blink of a star to size up asteroids for NASA's Lucy Mission

Gathering near Las Vegas recently, dozens of astronomers spread throughout the region, pointed their telescopes at the sky and waited for the moment on Oct. 20 that the light from a faraway star blinked out.
It was an event so miniscule it would have been easy to miss. Yet the data gathered in those few seconds will contribute to the success of NASA's Lucy mission, which launched from Cape Canaveral Space Force Station in Florida on Oct. 16.
The star appeared to briefly blink out because the asteroid Eurybates had passed in front of it. Eurybates is one of a handful of asteroids Lucy will visit over the next 12 years.
As Eurybates eclipsed the star, a phenomenon scientists call an "occultation," a 40-mile- (300-kilometer-) wide shadow the size of the asteroid passed over the region.
Astronomers spy quartet of cavities from giant black holes

Scientists have found four enormous cavities, or bubbles, at the center of a galaxy cluster using NASA's Chandra X-ray Observatory. This unusual set of features may have been caused by eruptions from two supermassive black holes closely orbiting each other.
Galaxy clusters are the largest structures in the universe held together by gravity. They are a mixture of hundreds or even thousands of individual galaxies, enormous amounts of hot gas, and unseen dark matter. The hot gas that pervades clusters contains much more mass than the galaxies themselves, and glows brightly in X-ray light that Chandra detects. An enormous galaxy is usually found at the center of a cluster.
A new Chandra study of the galaxy cluster known as RBS 797, located about 3.9 billion light-years from Earth, uncovered two separate pairs of cavities extending away from the center of the cluster.
Inaugural Space Resources Challenge for driving and walking rovers

Driving and walking rovers competed to survey a shadowy analog of the south polar lunar surface for useable resources during the inaugural ESA-ESRIC Space Resources Challenge. Some 13 teams from across Europe and Canada took part in last month's field test, with the winners due to be announced shortly.
The Space Resources Challenge—supported by ESA and the European Space Resources Innovation Centre (ESRIC) in Luxembourg—is asking European (and Canadian) researchers and institutions to develop and demonstrate a system of one or more vehicles capable of prospecting resources on the Moon in the near future.
Massimo Sabbatini, overseeing the contest for ESA, comments: "ESA is analyzing the results of the first field test of the Challenge and the competition is fierce. There was a wide range of participants and technological solutions to the problem of prospecting: notably different locomotion techniques—legged, wheeled, tracked, and so on—and approaches, such as single versus multiple vehicles and aerial vehicles. The jury is out!"
The emphasis of the contest is on prospecting: pinpointing promising resources within a difficult lunar environment then characterizing them in as much detail as possible, such as through visual inspection or spectral analysis.
NASA scientist discusses Parker's journey to the sun

Sixty years ago, NASA set an out-of-this-world goal: to touch our sun. Sending a spacecraft to the fiery star at the center of our solar system is no small feat. From engineering a spacecraft that could hurtle 430,000 mph through space to agreeing on what kinds of data it would capture, there was a lot to sort out. A half-century in the making, Parker Solar Probe finally launched in 2018. Now, three years later, it has touched the sun.
NASA Program Scientist Kelly Korreck serves as head of science operations and project manager for the Solar Wind Electrons Alphas and Protons, or SWEAP, investigation. SWEAP is one of four instrument suites aboard Parker Solar Probe. SWEAP includes a cup that sits outside the spacecraft's heatshield to scoop up some of the sun's plasma.