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…
Tag: clouds
Transmitting data from space to earth with laser filaments
Could light be used to transmit information between satellites and Earth? Atmospheric water vapor scatters and absorbs light energy, but overcome that obstacle, and light will carry far more information and move it faster than the radio waves we currently rely on. A new research project, supported by the National Geospatial-Intelligence Agency, proposes to use the properties of light itself to…
What are shelf clouds? Stunning photos here
Shelf clouds sometimes form at the forward edge of thunderstorms. See photos here. Source: https://earthsky.org/earth/photos-shelf-clouds-arcus…
Tips for watching N. Taurid meteors
The nominal peak of the North Taurid meteor shower is on the night of November 11-12, 2020. Source: https://earthsky.org/sky-archive/peak-night-for-n-taurid-meteor-shower-on-november-1112…
North of Orion’s Belt
Bright stars, interstellar clouds of dust and glowing nebulae fill Source: https://apod.nasa.gov/apod/ap201105.html…
North of Orion s Belt
Bright stars, interstellar clouds of dust and glowing nebulae fill Source: https://apod.nasa.gov/apod/astropix.html…
SpaceX Starship as a trash collector in Earth orbit?
SpaceX Starship’s many tasks may include launching humans into space, carrying satellites into orbit and — perhaps — removing troublesome pieces of space debris. Source: https://earthsky.org/space/spacex-starship-clean-up-space-junk…
2020 Antarctic ozone hole among largest, deepest in recent years
This year’s ozone hole covers most of the Antarctic continent and is among the largest and deepest in recent years. Source: https://earthsky.org/earth/antarctic-ozone-hole-2020-among-largest-deepest-in-recent-years…
What’s a Blue Moon, and when is the next one?
We have a Blue Moon coming up on October 31, 2020. It’ll be called a Blue Moon because it’ll be the 2nd of 2 full moons in a single calendar month. And it’ll be near a bright red object in the sky, Mars! Source: https://earthsky.org/astronomy-essentials/when-is-the-next-blue-moon…
Astronomers discover activity on distant planetary object
Centaurs are minor planets believed to have originated in the Kuiper Belt in the outer solar system. They sometimes have comet-like features such as tails and comae—clouds of dust particles and gas—even though they orbit in a region between Jupiter and Neptune where it is too cold for water to readily sublimate, or transition, directly from a solid to a gas….