NASA’s Solar Dynamics Observatory has been observing continuously the sun since its launch in 2010. From its vantage point above Earth, it sees the moon pass in front of the sun 2 to 5 times a year. Source: https://earthsky.org/todays-image/sdo-spies-its-1st-lunar-transit-of-2021-jan13…
Tag: space flight
New XPrize Challenge: Predicting Covid-19’s Spread and Prescribing Interventions
Slashdot reader the_newsbeagle shares an article from IEEE Spectrum:
Many associate XPrize with a $10-million award offered in 1996 to motivate a breakthrough in private space flight. But the organization has since held other competitions related to exploration, ecology, and education. And in November, they launched the Pandemic Response Challenge, which will culminate in a $500,000 award to be split between two…
71-Year-Old Slashdot Reader Describes His ‘Moderate’ Case of Covid
71-year-old Hugh Pickens (Slashdot reader #49,171) is a physicist who explored for oil in the Amazon jungle, commissioned microwave communications systems in Saudi Arabia, and built satellite control stations for Goddard Space Flight Center around the world including Australia, Antarctica, and Guam. After retiring in 1999, he wrote over 1,400 Slashdot posts, and in the site’s 23-year history still remains one…
Dark storm on Neptune changes direction, escapes deadly fate
Astronomers used the Hubble Space Telescope to observe unusual weather on the planet Neptune, not observed until now. They saw a large, dark storm on Neptune unexpectedly changing direction, thereby saving itself from looming destruction and possibly producing a smaller companion storm. Source: https://earthsky.org/space/large-dark-storm-change-direction-neptune…
Want to find life on Mars? Look deep underground
A new study from researchers at Rutgers University suggests that the best place to look for evidence of life on Mars is deep underground, where geothermal heat melted subsurface ice. Source: https://earthsky.org/space/mars-life-search-subsurface-ice-melted-by-geothermal-heat…
Less air pollution during Covid-19 restrictions, says study
NASA researchers have found that since February, pandemic restrictions have reduced global nitrogen dioxide concentrations by nearly 20%. Source: https://earthsky.org/earth/how-much-covid19-related-pollution-levels-deviated-from-norm-2020…
Research provides new insights on health effects of long-duration space flight
The historic NASA Twins Study investigated identical twin astronauts Scott and Mark Kelly and provided new information on the health effects of spending time in space. Source: https://phys.org/news/2020-11-insights-health-effects-long-duration-space.html…
Pluto’s landscape more like Earth’s than previously thought
New analysis of data gathered from New Horizons’ 2015 flyby of Pluto shows evidence of Earth-like snow-capped mountains and the potential for glaciers made of methane ice. Source: https://earthsky.org/space/pluto-landscape-more-like-earths-than-previously-thought…
What is a supernova?
A supernova is a star’s colossal explosion at the end of its life, potentially outshining its entire galaxy. Read about the causes and types of supernovae here. Source: https://earthsky.org/astronomy-essentials/definition-what-is-a-supernova…
SpaceX ready to take four astronauts to ISS Saturday
Three NASA crew and one Japanese astronaut are set for launch aboard a SpaceX rocket Saturday, bound for the International Space Station in the program’s first six-month routine mission since the United States resumed crewed space flight in May after nine years of reliance on Russia. Source: https://phys.org/news/2020-11-spacex-ready-astronauts-iss-saturday.html…