79
3mon
That news article is a bit light on details, so here's a link to a PDF of the paper itself: ... read full post
A University of Southampton spokesperson said the study found the star is “burning unusually bright as the super-dense white dwarf is gorging on its larger twin in a feeding frenzy”.
“Experts think the stars are locked in an extraterrestrial tango as they orbit each other every 12.3 hours, gradually pulling each other closer.
Soon, there will be three new ways to study the Sun’s influence across the solar system with the launch of a trio of NASA and National Oceanic and Atmospheric Administration (NOAA) spacecraft. Expected to launch no earlier than Tuesday, Sept. 23, the missions include NASA’s IMAP (Interstellar Mapping and Acceleration Probe), NASA’s Carruthers Geocorona Observatory, and NOAA’s SWFO-L1 (Space Weather Follow On-Lagrange 1) spacecraft. ... read full post
...has directly measured the mass of one of the mysterious 'Little Red Dots' (LRDs) spotted by JWST in the Epoch of Reionization, just 600 million years after the Big Bang...the rotation curve of QSO1 is neatly consistent with a galaxy rotating around a mass of about 50 million solar masses..."The only scenarios that can account for such a system are those invoking 'heavy seeds', such as direct collapse black holes (DCBHs, resulting from the direct collapse of massive pristine clouds), or primordial black holes (PBHs, formed in the first second after the Big Bang),"...The paper remains to be peer reviewed ... read full post
Engineers have designed a spacecraft that could take up to 2,400 people on a one-way trip to Alpha Centauri, the star system closest to our own. The craft, called Chrysalis, could make the 25 trillion mile (40 trillion kilometer) journey in around 400 years, the engineers say in their project brief, meaning many of its potential passengers would only know life on the craft. ... read full post