Mercury, the innermost planet, has a close conjunction with the king planet Jupiter on March 5, and then reaches its greatest elongation from the sun on March 6. Source: https://earthsky.org/tonight/mercurys-greatest-elongation-march-6-2021…
Tag: brilliant
What is a quasar?
A quasar is an extremely bright and distant point-like source visible to radio telescopes. The source is a so-called Active Galactic Nucleus, fueled by a supermassive black hole. Source: https://earthsky.org/astronomy-essentials/definition-what-is-a-quasar…