Elisa Neckar    NASA launched the Extreme Ultraviolet Explorer satellite, or EUVE, on June 7, 1992, to conduct an all-sky survey at wavelengths inaccessible from the...

Alison Klesman    Looking for a sky event this week? Check out our full Sky This Week column. June 6: Albireo returns By the time the sky is dark around 10 P.M. local...

Elisa Neckar    Extraterrestrial Cause for the Cretaceous-Tertiary Extinction, by physicist Luis Alvarez, geologist Walter Alvarez, Frank Asaro, and Helen Michel,...

Alison Klesman    Looking for a sky event this week? Check out our full Sky This Week column. June 5: Check in on Mars Look east around 11 P.M. local daylight time,...

Mark Zastrow    Carl Parnell, taken from Dawlish, Devon, UK The Jellyfish Nebula (IC 443 or Sharpless 2-248) is the remnant of a supernova that went off some 30,000...

Alison Klesman    Understanding the nature of our cosmos requires an accurate map of how galaxies are spread throughout it. For decades, astronomers suspected that...

Brooks Mendenhall    NASA has told crew aboard the International Space Station (ISS) to resume normal operations, ending a roughly two-hour period in which five...

Brooks Mendenhall    NASA announced new contracts for the rovers and landers that will lay the groundwork for the agency’s proposed 30-billion Moon Base some of which...

Jake Parks    The phenomenon of a Full Moon arises when our planet, Earth, is precisely sandwiched between the Sun and the Moon. This alignment ensures the entire...

Elisa Neckar    On June 5, 1819, British mathematician and astronomer John C. Adams was born in Cornwall. The first to predict the existence of Neptune, he wrote in...