Feb 20 - Where's the Missing Matter?

February 20 Where's the Missing Matter? by:

Help EarthSky keep going ...  We're more than halfway toward our goal in our once-yearly crowd-funding campaign. THANK YOU if you've already donated. Can you help? We need you! Click to donate and learn more. The background of this image is from a supercomputer simulation. It shows a honeycomb-like structure for our universe, sometimes called the "cosmic web." Image via CfA. Where is the universe's missing matter? When astronomers add up the mass of all the normal matter in the present-day universe, about a third of it can't be found. Where is it? Read more. See it! Photos of 2019's biggest supermoon Photos of the February 18 and 19 full supermoon. Thanks to all who submitted photos! See a selection here, or go to EarthSky Community Photos. A solar flare 10 billion times more powerful than sun's Our sun's solar flares are an incredible natural phenomenon, but now astronomers have observed a flare on a young star that almost defies belief. It's 10 billion times more powerful than any seen on our sun! Read more. Red dwarf star JW 566 (inside circle) was seen to produce its colossal solar flare on November 26, 2016. Image via Rogelio Bernal Andreo/CC BY-SA 3.0.

Donate today to help EarthSky keep going We need you and your support to keep going! Donate now, or visit our campaign page to learn some of our needs and goals for the coming year. Thank you to all who have donated!

Have you seen Mercury yet? View large at EarthSky Community Photos. | EarthSky friend Radu Anghel in Bacau, Romania, caught Mercury after sunset on February 17. Thank you, Radu! This is Mercury's best evening showing for 2019, for the Northern Hemisphere. It'll show itself at early evening - near the sunset point - from now until early March 2019. Southern Hemisphere? Click in and read more.

Watch: Aurora borealis over HAARP The SKYGLOW photographers were the first-ever civilians allowed to photograph the HAARP antenna array overnight. Although the temps at the remote Alaskan high-security research facility were frigid, the team was rewarded when an unexpected aurora borealis rolled in. Watch the video. Submit your photo to EarthSky here! Did a friend forward EarthSkyNews to you? Click here to get your own subscription!

by:

update your profile | unsubscribe