Nature Hub

 From Steller Science, BY:  GOVERT SCHILLING  , Edited by Amal Udawatta The unusual fireworks-like structure of nebula Pa 30 may result from the merger of two dying stars. Robert Fesen A supernova explosion that skywatchers in the Far East observed almost 850 years ago has produced the most unusual remnant astronomers have ever found. “I’ve worked on supernovae for [decades], and I’ve never seen anything like this,” says Robert Fesen (Dartmouth College), who photographed the weird object in late October 2022 with the 2.4-meter Hiltner telescope at Kitt Peak. Fesen presented his results at the 241st meeting of the American Astronomical Society (AAS) in Seattle; a paper has been submitted to  Astrophysical Journal Letters  ( preprint available here ). In other work presented at the AAS meeting and submitted to  Monthly Notices of the Royal Astronomical Society  ( preprint here ), his coauthor Bradley Schaefer (Louisiana State University) argues that the supernova resulted when two white

  By Jonathan Amo   - BBC Science Coraspondent, Edited by -Amal Udawatta IMAGE SOURCE, UPFLOW/A.FERREIRA Image caption, The Upflow ocean-bottom seismometer project is led from University College London, UK The massive volcanic blast in the Pacific last year was felt 18,000km away on the other side of the world, on the floor of the Atlantic Ocean. The cataclysmic eruption of Hunga-Tonga Hunga-Ha'apai on 15 January 2022 sent pressure waves through Earth's atmosphere that connected with the sea surface and triggered 50 highly sensitive seismometers placed 5,000m under water on the seabed. It was one of a number of intriguing phenomena picked up by the instrument network in the Azores-Madeira-Canary Islands region. Scientists, led from  University College London , had set up the stations primarily to detect earthquakes. The goal is to use the signals from ground motions to image the interior of the planet, to trace the great upwellings of magma of the type that built the islands of

  By Kate Stephens and Pallab Ghosh BBC News Climate and Science, Edited By -Amal Udawatta, IMAGE SOURCE, REUTERS Image caption, Nasa's Space Launch System (SLS) Moon rocket lifts off for the uncrewed Artemis I mission There is a new order emerging in space - a race between America and China. But with the demands of space exploration, even these great superpowers won't be able to do it alone. Hugely technically challenging and costly goals have been touted, not least the aim of people living and working on other worlds, possibly within ten years - but in a divided world where international good will is scarce, are they realistic? Nasa's return to the Moon has begun with its Artemis programme. The first of three missions has been successfully launched. This uncrewed flight tested that the rockets and technology worked. The second mission will take humans further in space than they have ever gone before and the third launch will put astronauts on the Moon for a week, where th