Astrobiology Magazine 18 Jun 2020, 15:32 UTC There may be as many as one Earth-like planet for every five Sun-like stars in the Milky way Galaxy, according to new estimates by University of British Columbia astronomers using data from NASA’s Kepler mission.
SciTech Daily 18 Jun 2020, 10:30 UTC A team of astronomers, including researchers at MIT, has picked up on a curious, repeating rhythm of fast radio bursts emanating from an unknown source outside our galaxy, 500 million light years away.
Centauri Dreams 17 Jun 2020, 16:28 UTC 38 K, which translates to -235 Celsius or -390 Fahrenheit, is cold enough to allow atmospheric nitrogen to condense as surface frost, which appears to be what is happening on Neptune’s large moon Triton. This is an intriguing place, with pinkish deposits at the enormous south polar cap that are thought to contain methane ice — the color would derive from reactions with sunlight to form a variety of pink or red compounds. Moreover, there are geyser-like plumes here that leave dark streaks over the ices, some of them active when Voyager 2 flew past.
Pulsars Confirm One of Einstein’s Best Ideas, That Freefall Really Feels Like You’re Experiencing a Lack of Gravity17 Jun 2020, 09:32 UTC General Relativity predicts that gravity and inertia are often indistinguishable. This has now been proven under the strongest conditions to date by precisely tracking the motion of a pulsar.
New Estimate Calculates There Could be 30 Intelligent Civilizations Communicating Across the Milky Way16 Jun 2020, 18:38 UTC Over the years, scientific estimates of potential intelligent life in our galaxy have ranged widely. Some estimates say just one (only us Earthlings) to just a handful, to possibly thousands or even millions. A new study attempts to quantify the number of other worlds we could potentially talk to by estimating the number of intelligent civilizations within the Milky Way that are actively communicating.
Bad Astronomy 16 Jun 2020, 13:00 UTC When you look up at the night sky, you can see thousands of stars. The fact that they're there at all implies they had a beginning, and we know stars can exist for billions of years. We see them die, and we see them being born. It's not a huge leap of logic to presume that, given the finite age of the Universe, there must have been a time when the very first stars were born.
NASASpaceFlight.com 16 Jun 2020, 10:36 UTC Two intrepid spacecraft are dancing with the Sun and making great progress toward the goal of learning more about our star. After NASA announced that Parker Solar Probe (PSP) had sent the “Status A” beacon after its fifth close flyby of the Sun, the European Space Agency (ESA) has announced that its Solar Orbiter has completed its first Perihelion.