Starts With a Bang! 14 Feb 2020, 15:01 UTC It took thousands of scientists working for hundreds of years for us to arrive at this picture, and yet the lack of a consensus on what the expansion rate actually is tells us that either something is dreadfully wrong, we have an unidentified error somewhere, or there’s a new scientific revolution just on the horizon.
Discover 14 Feb 2020, 13:00 UTC You don’t have to be a scientist to know that stars shine. It’s what they’re known for. But how and why they shine was unknown for thousands of years, and only became clear in the 20th century, as humans puzzled out the power of nuclear fusion.
Scientific American 13 Feb 2020, 16:16 UTC How the Celebrated "Pale Blue Dot" Image Came to Be
Bad Astronomy 13 Feb 2020, 14:00 UTC The placements of the planets in our solar system are pretty stable. By that I mean their orbits don't change much over time. There are changes, to be sure, but they tend to be slow or cyclic, and any big changes would take millions, if not billions, of years to play out.
Centauri Dreams 12 Feb 2020, 17:02 UTC 330 light years from the Sun is the infant planet 2MASS 1155-7919 b, recently discovered in Gaia data by a team from the Rochester Institute of Technology. It’s a useful world to have in our catalog because we have no newborn massive planet closer to Earth than this one. Circling a star in the Epsilon Chamaeleontis Association, 2MASS 1155-7919 b is thought to be no more than 5 million years old, orbiting its host at roughly 600 times the Earth/Sun distance. A stellar association like Epsilon Chamaeleontis is a loose cluster, with stars that have a common origin but are no longer gravitationally bound as they move in rough proximity through space.
Discover 12 Feb 2020, 13:00 UTC
Universe Today 12 Feb 2020, 02:49 UTC This summer, between mid-July and early August, the Mars 2020 rover will launch, reaching Mars by February of 2021. Once it touched down in the Jezero Crater, it will carry on in the footsteps of its predecessor – the Curiosity rover. This will include searching for evidence of Mars’ past habitability and the possible existence of life (past and present), as well as a sample-return mission.
Universe Today 11 Feb 2020, 20:52 UTC Picture the space around Earth filled with tens of thousands of communications satellites. That scenario is slowly coming into being, and it has astronomers concerned. Now a group of astronomers have written a paper outlining their detailed concerns, and how all of these satellites could have a severe, negative impact on ground-based astronomy.