On the pulse of pulsars and polar light

On the pulse of pulsars and polar light Faced with the tragic loss of the Arecibo observatory in Puerto Rico and the often prohibitive cost of satellite missions, astronomers are searching for savvy alternatives to continue answering fundamental questions in physics. phys.org Go to Source

A new super-Earth detected orbiting a red dwarf star

A new super-Earth detected orbiting a red dwarf star In recent years there has been an exhaustive study of red dwarf stars to find exoplanets in orbit around them. These stars have effective surface temperatures between 2400 and 3700 K (over 2000 degrees cooler than the Sun), and masses between 0.08 and 0.45 solar masses. […]

Video: Mapping the radio sky

Video: Mapping the radio sky The Very Large Array can’t image a big section of sky all at once. Instead, it must scan the sky over time. phys.org Go to Source

NASA rocket to survey the solar system’s windshield

NASA rocket to survey the solar system’s windshield Eleven billion miles away—more than four times the distance from us to Pluto—lies the boundary of our solar system’s magnetic bubble, the heliopause. Here the Sun’s magnetic field, stretching through space like an invisible cobweb, fizzles to nothing. Interstellar space begins. phys.org Go to Source

Surprise twist suggests stars grow competitively

Surprise twist suggests stars grow competitively A survey of star formation activity in the Orion Nebula Cluster found similar mass distributions for newborn stars and dense gas cores, which may evolve into stars. Counterintuitively, this means that the amount of gas a core accretes as it develops, and not the initial mass of the core, […]

Ground-Based Lasers Could Push Space Debris off Collision-Course Orbits

Ground-Based Lasers Could Push Space Debris off Collision-Course Orbits Researchers at the Australian National University (ANU) are finding new uses for the laser-based technology that sharpens telescope imagery – called adaptive optics – and it just might help mitigate the world’s growing space debris problem. Purpose-built lasers could give derelict satellites a slight ‘push’ of […]

New NASA visualization probes the light-bending dance of binary black holes

New NASA visualization probes the light-bending dance of binary black holes A pair of orbiting black holes millions of times the Sun’s mass perform a hypnotic pas de deux in a new NASA visualization. The movie traces how the black holes distort and redirect light emanating from the maelstrom of hot gas—called an accretion disk—that […]

Researchers identify five double star systems potentially suitable for life

Researchers identify five double star systems potentially suitable for life Almost half a century ago the creators of Star Wars imagined a life-sustaining planet, Tatooine, orbiting a pair of stars. Now, 44 years later, scientists have found new evidence that that five known systems with multiple stars, Kepler-34, -35, -38, -64 and -413, are possible […]

Baked meteorites yield clues to planetary atmospheres

Baked meteorites yield clues to planetary atmospheres In a novel laboratory investigation of the initial atmospheres of Earth-like rocky planets, researchers at UC Santa Cruz heated pristine meteorite samples in a high-temperature furnace and analyzed the gases released. phys.org Go to Source

Famous fast radio burst FRB20180916B just barely lets itself be captured

Famous fast radio burst FRB20180916B just barely lets itself be captured Two international teams of astronomers (with significant Dutch involvement) have published two scientific papers with new information about the famous fast radio burst FRB20180916B. In a study published in the Astrophysical Journal Letters, they measured the radiation from the bursts at the lowest possible […]

#106 – April 2021 Part 2

#106 – April 2021 Part 2 The Discussion: The ‘Wiltshire Audio Anomaly’ 20% off the book Vera Rubin – A Life for US listeners using url: hup.harvard.edu/exhibits/HX7578 @StargazerRob’s alternative astrophotographer of the year award Listeners’ emails The News: April Fools research papers Commemorating 60 years since Yuri Gagarin’s 1st Spaceflight An update on @NASA’s Mars […]