NASA’s Chandra: Planets Can Be Anti-Aging Formula for Stars

NASA's Chandra: Planets Can Be Anti-Aging Formula for Stars

Planets can force their host stars to act younger than their age, according to a new study of multiple systems using NASA’s Chandra X-ray Observatory. This may be the best evidence to date that some planets apparently slow down the aging process for their host stars. While the anti-aging property of “hot Jupiters” (that is, […]

Skywatching Highlights for November 2022

Skywatching Highlights for November 2022

A total lunar eclipse brings some magic to the morning sky on November 8th, and the Leonid meteors peak after midnight on November 18th, with some glare from a 35% full moon. In addition, enjoy pretty views on other days in November when the Moon visits planets Mars and Saturn, and bright star Spica. 0:00 […]

Skywatching Highlights for October 2022

Enjoy giant planets Jupiter and Saturn all night throughout the month. Then watch as Mars begins its retrograde motion, moving westward each night instead of eastward, for the next few months. Finally, check out the Orionid meteors overnight on Oct. 20. 0:00 Intro 0:11 Evenings with Jupiter & Saturn 0:37 Mars’ retrograde motion 2:07 Orionid […]

NASA Selects Proposals to Study Stellar Explosions, Galaxies, Stars

NASA Selects Proposals to Study Stellar Explosions, Galaxies, Stars

NASA has selected four mission proposals submitted to the agency’s Explorers Program for further study. The proposals include missions that would study exploding stars, distant clusters of galaxies, and nearby galaxies and stars. Two Astrophysics Medium Explorer missions and two Explorer Missions of Opportunity have been selected to conduct mission concept studies. After detailed evaluation […]

NASA Helps Decipher How Some Distant Planets Have Clouds of Sand

NASA Helps Decipher How Some Distant Planets Have Clouds of Sand

A new study using archival observations by the now-retired Spitzer Space Telescope found a common trait among distant worlds where the exotic clouds form. Most clouds on Earth are made of water, but beyond our planet they come in many chemical varieties. The top of Jupiter’s atmosphere, for example, is blanketed in yellow-hued clouds made of […]

Dead Star Caught Ripping Up Planetary System

Dead Star Caught Ripping Up Planetary System

The illustration above shows a white dwarf star siphoning off debris from shattered objects in a planetary system. The Hubble Space Telescope detects the spectral signature of the vaporized debris that revealed a combination of rocky-metallic and icy material, the ingredients of planets. The findings help describe the violent nature of evolved planetary systems and […]

NASA Telescope to Help Untangle Galaxy Growth, Dark Matter Makeup

Nancy Grace Roman Space Telescope

NASA’s Nancy Grace Roman Space Telescope will study wispy streams of stars that extend far beyond the apparent edges of many galaxies. Missions like the Hubble and James Webb space telescopes would have to patch together hundreds of small images to see these structures around nearby galaxies in full. Roman will do so in a […]