Denizens of planet Earth typically watch meteor showers by looking up. But this remarkable view, captured on August 13, 2011 by astronaut Ron Garan, caught a Perseid meteor by looking down. From Garan's perspective on board the International Space Station orbiting at an altitude of about 380 kilometers, the Perseid meteors streak below, swept up dust from comet Swift-Tuttle. The vaporizing comet dust grains are traveling at about 60 kilometers per second through the denser atmosphere around 100 kilometers above Earth's surface. In this case, the foreshortened meteor flash is near frame center, below the curving limb of the Earth and a layer of greenish airglow, just below bright star Arcturus. Want to look up at a meteor shower? You're in luck, as the 2024 Perseid meteor shower is active now and predicted to peak near August 12. With interfering bright moonlight absent, this year you'll likely see many Perseid meteors under clear, dark skies after midnight.
Image Credit: Ron Garan, ISS Expedition 28 Crew, NASA
Squids on Earth aren't this big. This mysterious squid-like cosmic cloud spans nearly three full moons on planet Earth's sky. Discovered in 2011 by French astro-imager Nicolas Outters, the Squid Nebula's bipolar shape is distinguished here by the telltale blue emission from doubly ionized oxygen atoms. Though apparently surrounded by the reddish hydrogen emission region Sh2-129, the true distance and nature of the Squid Nebula have been difficult to determine. Still, one investigation suggests Ou4 really does lie within Sh2-129 some 2,300 light-years away. Consistent with that scenario, the cosmic squid would represent a spectacular outflow of material driven by a triple system of hot, massive stars, cataloged as HR8119, seen near the center of the nebula. If so, this truly giant squid nebula would physically be over 50 light-years across.
Image Credit & Copyright: Alex Linde
It's been a year full of science on the @Space_Station!
Take a look back at @ISS_Research experiments we conducted in orbit in 2023: https://t.co/bTn4eS7isl
Members of @USSKittyHawkSF & other fans across the Trekverse at GalaxyCon Raleigh Star Trek cosplay shoot. One of the photos is in front of the original Klingon flag from the trial of Kirk & McCoy in “The Undiscovered Country.” #StarTrek#GalaxyCon#GalaxyConRaleigh
The @inglorioustrek invite you to support their new Kickstarter campaign for the ultimate fan road trip documentary exploring the filming locations of Star Trek: To Boldly Go!
For more info and to support the kickstarter go to https://t.co/lyxdyno59W