Category: astrophysical journal letters

Scientists think some supermassive black holes didn’t start as stars

Post author By Randall
Post date June 28, 2019
Categories In astrophysical journal letters, astrophysics, black hole, direct-collapse, formation, Research, Space, stellar, supermassive black hole, Tech, tomorrow, universe, western university

[ad_1] In the most simple terms, the model suggests that supermassive black holes formed “very, very quickly over very, very short periods of time” and then stopped suddenly. “Supermassive black holes only had a short time period where they were able to grow fast and then at some point, because of all the radiation in […]

NASA’s TESS spacecraft finds its first Earth-sized exoplanet

Post author By Randall
Post date April 16, 2019
Categories In astrophysical journal letters, discovery, earth-sized, hd21749c, mit, Nasa, planet, satellite, Space, spacecraft, Tech, tess, tomorrow

[ad_1] This newly identified planet is the smallest world outside our solar system that TESS has spotted. And the spacecraft’s data shows HD21749c circles its star every 7.8 days, meaning it has a tight orbit that would lead to surface temperatures of up to 800 degrees Fahrenheit. TESS has now found 10 planets smaller than […]