Sound up!

These are chorus waves, radio waves emitted by energetic particles in the Earth’s magnetosphere. The sound was captured by the #VanAllenProbes' EMFISIS Instrument. Today the team performs burn 1 on spacecraft A to lower the perigee. https://t.co/PHUZfqPRW4 pic.twitter.com/poqbtfvwdr

— Johns Hopkins APL (@JHUAPL) March 11, 2019

I took this shot of he Milky Way through a crystal ball a few days ago at Paranal Observatory. It looks like a cosmic marble!#AstroPhotography pic.twitter.com/gyUYQffblj

— Juan Carlos Munoz (@astro_jcm) June 19, 2018

The White House is considering cuts of nearly $500 million to NASA’s budget for FY 2020. We cannot let this happen!

Donate now to advance our critical face-to-face space advocacy efforts in Washington, D.C. at https://t.co/O4cvPhZ4tl pic.twitter.com/4u4REKdcpl

— Planetary Society (@exploreplanets) March 19, 2019