Hubble (along with ground-based telescopes) revealed that the expansion rate of our universe is accelerating!
Soon, @NASARoman will study the “dark energy” behind this expansion with its large field of view and infrared vision.
532091.3K66.1K
@NASAHubble
The official X account for the NASA Hubble Space Telescope, managed and operated by NASA's Goddard Space Flight Center.
NASA Universe @NASAUniverseScience operations for our Neil Gehrels Swift Observatory have now ended. With the spacecraft orbiting less than 171 miles (275 kilometers) above Earth, atmospheric drag prevents the satellite’s telescopes from steadily gazing at their cosmic targets. 🧵