Forbes articles by Brian Koberlein 27 Apr 2020, 15:58 UTC When an exoplanet has an atmosphere, the planet can be smaller than it appears. But this also lets astronomers study the atmosphere itself.
SPACE.com 27 Apr 2020, 11:05 UTC The Hubble Space Telescope launched on the 24th of April, 30 years ago. It’s an impressive milestone especially as its expected lifespan was just 10 years. One of the primary reasons for the Hubble telescope’s longevity is that it can be serviced and improved with new observational instruments through Space Shuttle visits.
Astronomy.com News 27 Apr 2020, 10:00 UTC Black holes are most often discussed in terms of their mass, but how much volume do these hefty, invisible objects actually have?
Centauri Dreams 23 Apr 2020, 14:03 UTC What an exceptional system the one around HD 158259 is! Here we have six planets, uncovered with the SOPHIE spectrograph at the Haute-Provence Observatory in the south of France, with the innermost world also confirmed through space-based TESS observations. Multiple things jump out about this system. For one thing, all six planets are close to, but not quite in, a 3:2 resonance. That ‘close to’ tells the tale, for researchers believe there are clues to the formation history of the system within their observations of this resonance.
Physics World Blog 23 Apr 2020, 10:38 UTC An enigmatic object once thought to be a massive exoplanet is more likely to be the remnants of a catastrophic collision between two comet-like bodies, two US astronomers have shown. Andras Gaspar and George Rieke at the University of Arizona made the discovery after re-analysing observations of the Fomalhaut system made by the Hubble Space Telescope (HST). Their proposal could improve our understanding of how orbiting bodies can destroy each other, even in more peaceful star systems.
Parabolic Arc 23 Apr 2020, 00:00 UTC In 1970, the United States Clean Air Act underwent major revisions to reduce pollution and protect air quality, President Nixon created the Environmental Protection Agency, and NASA scientists were cracking open the door on a new era of studying our home planet from space. The first black-and-white satellite images of Earth were just ten years old: a swirling mass of white clouds over back oceans. The first measurements of Earth’s temperature from space were made just a year prior in 1969 by Nimbus 3, a joint mission with the National Oceanic and Atmospheric Administration, which became a major step in improving weather forecasts.
Universe Today 22 Apr 2020, 18:53 UTC Farewell! Even though the BepiColombo mission launched for Mercury in 2018, it’s still hanging around the Earth – at least, briefly, as shown in this stunning image recently released by the European Space Agency.