Suspected Second-generation Planet Solves NASA Hubble Cold Case
New analysis of archival Hubble data points to the possibility of “dead” white dwarf stars hosting second-generation planetary systems.
Help Overlap Zoo Reveal Cosmic Dust
Galaxies, vast collections of billions of stars, gas, and dust held together by gravity, are scattered across the immensity of space. But every so often, a coincidence occurs: Two galaxies line up from our point of view on Earth (or from a space…
NASA’s Hubble Seeks Lensed Supernova, Marks 200,000 Orbits
NASA’s Hubble Space Telescope completed its 200,000th orbit around Earth on Sept. 19, marking another new milestone for an observatory that continues to transform our understanding of the universe. Hubble has traveled more than 5 billion miles around…