Scientific American 23 Feb 2021, 20:00 UTC The NASA spacecraft has also snapped more shots of its surroundings and listened to a Martian wind gust.
Bad Astronomy 23 Feb 2021, 14:00 UTC Using one of the largest optical light telescopes in the world, astronomers have identified one of the rarest beasts in the Universe: An extremely distant type of galaxy called a BL Lac object, a galaxy's supermassive black hole spewing out a beam of energy so powerful it dwarfs the light of the entire galaxy it comes from.
SciTech Daily 23 Feb 2021, 11:10 UTC A team of scientists has detected the presence of a high-energy neutrino — a particularly elusive particle — in the wake of a star’s destruction as it is consumed by a black hole. This discovery sheds new light on the origins of Ultrahigh Energy Cosmic Rays — the highest energy particles in the Universe.
Lights in the Dark 22 Feb 2021, 21:45 UTC On February 18, 2021, NASA’s Perseverance rover successfully landed on Mars, becoming the fifth robotic rover to do so and the third operational exploration robot currently on the planet’s surface. Today during a press conference NASA released stunning high-definition video from Perseverance’s entry, descent, and landing (EDL) sequence to the anticipation and excitement of scientists and space enthusiasts alike. If you haven’t seen it yet, check it out below…guaranteed it’s something you’ve never seen before!
Protogalaxy Cluster Found When the Cosmic Fog Was Starting to Clear, When the Universe Was Just 750 Million Years Old22 Feb 2021, 14:09 UTC Origin stories are a focus of many astronomical studies. Planetary formation, solar system formation, and even galaxy formation have long been studied in order to understand how the universe came to be where it is today. Now, a team of scientists from the Lyman Alpha Galaxies in the Epoch of Reionization (LAGER) consortium have found an extremely early “protogalaxy” that was formed approximately 750 million years after the big bang. Studying it can provide insights into that early type of galaxy formation and everything that comes after.
Starts With a Bang! 19 Feb 2021, 15:02 UTC Are space and time real like atoms are, or is spacetime just a calculational tool?
Lights in the Dark 18 Feb 2021, 22:40 UTC Today’s Perseverance rover landing on Mars was a success! There are now two new robots on Mars—Perseverance and the Ingenuity helicopter it brought along—which touched down in Jezero Crater at 3:44 p.m. EST / 20:44 UTC today, February 18. The confirmation signal was received here on Earth, 127 million miles away, 11 minutes and 21 seconds later at 3:55 p.m. EST. The first low-resolution greyscale images from the rover’s hazard avoidance cameras arrived shortly after that, showing views of the ground in front and behind Perseverance. I colorized them to somewhat approximate natural Mars color (seen below). Better ones will be coming soon to the Mars 2020 raw image page, but for now these are our first views from inside Jezero Crater! Congratulations to NASA, JPL, and the Mars 2020 EDL team!