NASA’s Balloon Program is preparing new missions, including one designed to investigate the birth of our universe.
Image via NASA.
Today, as part of its Grand Finale, the Cassini spacecraft begins its final 5 orbits, a set of ultra-close sweeps through Saturn’s upper atmosphere.
This artist's rendering shows Cassini as the spacecraft makes one of its final five dives through Saturn's upper atmosphere in August and September 2017. Image via NASA/JPL-Caltech.
Watch for the last quarter moon tonight after midnight or Tuesday morning. Just one week to go to the total solar eclipse!
Zefri Besar in Brunei Darussalam caught the last quarter moon on the morning of June 17, 2017, just after midnight.
Look edgewise into our galaxy’s disk, and you’ll notice a long, dark lane dividing the bright starry band of the Milky Way. This Dark Rift is a place where new stars are forming.
Thick dust clouds block our night-time view of the Milky Way, creating what is sometimes called the Great Rift or Dark Rift. Image via NASA.
Named for Florence Nightingale, asteroid 3122 Florence is the biggest near-Earth object to pass this close since this category of objects was discovered over a century ago! It might be visible in binoculars.
New short video from NASA about the hunt for potentially hazardous asteroids and comets, and ways to defend Earth against them.
Despite a bright moon, the brightest Perseids put on a good show. See photos from the EarthSky community here.
Sky insights and charts from astronomer Guy Ottewell that can help you see the moon now, and picture it on its way to the August 21, 2017 total solar eclipse!
The moon's path among the stars, until the August 21, 2017 total solar eclipse. Illustration from Guy Ottewell's The Under-Standing of Eclipses. Used with permission.
A waning gibbous moon will do its best to drown out the 2017 Perseid meteor shower. Here are some tips for enjoying the moonlit Perseid meteors in 2017.
Taurid meteor, November 1, 2015, via Elliot Herman in Tucson, Arizona.