Astronomy is often about being close to extraordinary things without fully experiencing them. Here's why to love partials, grazings, faint objects and other almost-events.
Astronomers are closer than ever to confirming the discovery of the first starless or "failed" galaxy, packed with dark matter and gas but with virtually no stars.
.@Astro_Jessica and @Soph_Astro will exit the space station for a spacewalk on Sept. 1 live on @NASA+. The spacewalkers will replace a spacecraft navigational aid and prepare a cosmic particle detector for future upgrades. More...