Our Earth and sun were born together, and their fates are tied together. As our star becomes a red giant and billows outward, our planet will become a dry, scorched, uninhabitable rock. This will happen even as our Milky Way galaxy collides with the Andromeda galaxy next door.
This artist's conception shows how stars become red giants and scorch any planet in orbit around them. Credit: ESO/L. Calçada
A new study has found that pollution from microplastics is widespread in the Arctic Ocean, and 92% of those particles are minuscule synthetic fibers from our clothes.
Scientists have found widespread evidence of microplastics in the Arctic Ocean. This could further stress the fragile Arctic ecosystem and the food it provides to people living there. Image via Shutterstock/ The Conversation https://theconversation.com/theyre-everywhere-new-study-finds-polyester-fibres-throughout-the-arctic-ocean-152881
2020 was Earth’s hottest year in the 140-year record, effectively tying 2016, the previous record-holder.
NASA’s Solar Dynamics Observatory has been continuously observing 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.
Megalodons – the extinct giant sharks that lived in most of Earth’s oceans about 3 million years ago – gave birth to babies that were larger than adult humans, scientists say.
For millennia, humans have viewed the northern and southern lights – aurora borealis and aurora australis – and created myths and folklore to explain the dancing lights they saw in the sky.
Northern lights in Alaska by Manish Mamtani Photography.
Astronomers have a new measurement for the distance of quasar J0313-1806, making it the new record-holder for the most distant quasar known. We’re seeing it just 670 million years after the Big Bang, or more than 13 billion light-years away.
Artist’s impression of quasar J0313-1806. Quasars are highly luminous objects in the early universe, thought to be powered by supermassive black holes. This illustration shows a wide accretion disk around a black hole, and depicts an extremely high-velocity wind, flowing at some 20% of light-speed, found in JO313-1806's vicinity. Image via NOIRLab/ NSF/ AURA/ J. da Silva/ Keck Observatory
. View an annotated version of this image. https://earthsky.org/upl/2021/01/supesupermassive-black-hole-quasar-JO313-1806-artist.png
The first comet to be found in 2021 – labeled C/2021 A1 (Leonard) – might become the brightest comet of this year! Charts and more info here.
This is what a comet looks like - just a dot to our eyes - when it's far from the sun. Astronomers spotted Comet Leonard (inside the tick marks) in early January 2021, a year before its closest sweep past our sun. The comet might be visible to the unaided eye by the end of this year. Read more about this image
, which is via astronomer Filipp Romanov.
Space’sX CRS-21 Cargo Dragon returned to Earth from the ISS today, January 13, 2021, splashing down off the coast of Florida for the first time ever. The ship also succeeded in the first-ever autonomous undocking.
Numerous private vessels approach the spacecraft after splashdown, as seen in this recovery photograph of SpaceX’s Crew Dragon capsule in August, 2020. Image via Spaceflight Now/NASA/Bill Ingalls. / Support teams arrive at the SpaceX Crew Dragon spacecraft, with NASA astronauts Robert Behnken and Douglas Hurley onboard, shortly after it splashed down in the Gulf of Mexico off the coast of Pensacola, Florida, on Aug. 2, 2020, for the agency’s SpaceX Demo-2 mission. Behind them is the SpaceX GO Navigator recovery ship, where Crew Dragon was taken for Behnken and Hurley to exit the capsule. The final flight test for SpaceX under NASA’s Commercial Crew Program, Demo-2 will pave the way for the agency to certify the company’s transportation system for regular, crewed flights to the orbiting laboratory.