Copernical Team
String of stars in Milky Way are related
The Milky Way houses 8,292 recently discovered stellar streams - all named Theia. But Theia 456 is special. A stellar stream is a rare linear pattern - rather than a cluster - of stars. After combining multiple datasets captured by the Gaia space telescope, a team of astrophysicists found that all of Theia 456's 468 stars were born at the same time and are traveling in the same direction a
Dark Energy Survey makes public catalog of nearly 700 million astronomical objects
The Dark Energy Survey, a global collaboration including the Department of Energy's Fermi National Accelerator Laboratory, the National Center for Supercomputing Applications, and the National Science Foundation's NOIRLab, has released DR2, the second data release in the survey's seven-year history. DR2 is the topic of sessions today and tomorrow at the 237th Meeting of the American Astronomical
Simulating evolution to understand a hidden switch
Computer simulations of cells evolving over tens of thousands of generations reveal why some organisms retain a disused switch mechanism that turns on under severe stress, changing some of their characteristics. Maintaining this "hidden" switch is one means for organisms to maintain a high degree of gene expression stability under normal conditions. Tomato hornworm larvae are green in warm
Back to Venus armed with laboratory findings
Venus's impenetrable atmosphere has long made it difficult to conduct a thorough investigation of our neighbouring planet. In a step forward, by conducting laboratory experiments scientists from the German Aerospace Center (Deutsches Zentrum fur Luft- und Raumfahrt; DLR) have now developed a way of determining the nature of the planet's surface using new instruments from orbit. The entire surfac
A 'super-puff' planet like no other
The core mass of the giant exoplanet WASP-107b is much lower than what was thought necessary to build up the immense gas envelope surrounding giant planets like Jupiter and Saturn, astronomers at Universite de Montreal have found. This intriguing discovery by Ph.D. student Caroline Piaulet of UdeM's Institute for Research on Exoplanets (iREx) suggests that gas-giant planets form a lot more
X-Rays surrounding 'Magnificent 7' may be traces of sought-after particle
A new study, led by a theoretical physicist at the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab), suggests that never-before-observed particles called axions may be the source of unexplained, high-energy X-ray emissions surrounding a group of neutron stars. First theorized in the 1970s as part of a solution to a fundamental particle physics problem, axion
China issues document to boost global cooperation on lunar samples
China published its Regulations on the Management of Lunar Samples on Monday morning, aiming to improve scientific research and international cooperation. Developed by the China National Space Administration, the document has nine chapters and 37 clauses, governing the storage, management and use of lunar samples brought back by the country's Chang'e 5 mission. According to the regul
Cosmic beasts and where to find them
Two giant radio galaxies have been discovered with South Africa's powerful MeerKAT telescope. These galaxies are thought to be amongst the largest single objects in the Universe. The discovery has been published today in Monthly Notices of the Royal Astronomical Society .
Astronaut vlog: space food and fitness
English Astronaut vlog: space food and fitness
ESA astronaut Matthias Maurer is preparing for his mission to the International Space Station, scheduled for launch in late 2021. This mission is known as Cosmic Kiss.
In this video log from his current training base at NASA’s Johnson Space Center in Houston, Texas, USA, Matthias shows a space food tasting session and shares how astronauts maintain their fitness for a safe return to Earth.
Astronauts exercise for two hours a day, six days a week while on the International Space Station to combat muscle and bone loss caused by an extended stay
The U.S. Postal Service to issue NASA sun science forever stamps
NASA's images of the sun's dynamic and dazzling beauty have captivated the attention of millions. In 2021, the US Postal Service is showcasing the sun's many faces with a series of sun Science forever stamps that show images of solar activity captured by NASA's Solar Dynamics Observatory, or SDO.
"I have been a stamp collector all my life and I can't wait to see NASA science highlighted in this way," said Thomas Zurbuchen, associate administrator for NASA's Science Mission Directorate (SMD) in Washington. "I feel that the natural world around us is as beautiful as art, and it's inspiring to be able to share the import and excitement of studying the sun with people around the country.