What are some of the mysteries and open questions in cosmology?

Jan 15, 2020 ... The closest star to the sun might have a second planet in its orbit. Proxima Centauri is our nearest neighboring star; it's just 4.2 light-years away. Jan 17, 2020 ... ... earth orbiting the Proxima Centauri, the star closest to the sun, only 4.2 light-years away from our Earth. Now, they have managed to trace a ... Dec 8, 2020 ... The two bright stars, called Alpha Centauri A and B form a close binary system; they are separated by only 23 times the Earth - Sun distance. Jul 20, 2022 ... Charting Planet's Second Decade · Build an Earth data platform that enables millions of people to take positive action. · Innovate in both space ... Sep 20, 2020 ... Scientists just discovered the second-closest exoplanet to Earth, orbiting Barnard's star, one of the closest stars to the Sun. Nov 14, 2018 ... Just six light-years from Earth, the second-closest star system to our Sun hosts a frozen super-Earth, according to new findings by an international team of ... Mar 11, 2025 ... ... planets circling around Barnard's Star, the second-nearest star system to Earth. The four planets, each only about 20 to 30% the mass of Earth ... Jan 15, 2020 ... Located just 4.2 light-years away, the star Proxima Centauri now has both an Earth-like world in its habitable zone and a more distant super-Earth. Jan 11, 2022 ... A third star, Proxima Centauri (sometimes called Alpha Centauri C), is gravitationally associated with the former. It's actually slightly closer to Earth at 4. ... Feb 28, 2020 ... The generically named G 9-40b was initially spotted by Kepler, NASA's planet-hunting space telescope, during its K2 mission last year. But ...