A train of Starlink satellites cutting through the stars. Always feels a bit sci-fi when you catch it in real time. π
Have you ever seen them pass over? Share your best photos and videos in replies! π°οΈπ
A cosmic flash from 2002 is still echoing today. π€―
This light echo around V838 Monocerotis occurs as a decades-old burst of starlight travels outward, illuminating never-before-seen cosmic dust in real time. π
π· NASA/ESA
Imagine looking up at the Martian sky and seeing two moons racing in completely different directions. Phobos moves so fast it crosses the sky three times a day. π
Meet 55 Cancri e, a planet twice the size of Earth where the interior is thought to be made of pure diamond and graphite. At these temperatures, the phrase "pressure makes diamonds" is taken to a whole new level. π
Jupiterβs clouds are a masterpiece, but their color is a mystery. Though the ices should be white, sunlight and lightning likely react with organic and sulfur compounds to create these stunning orange and brown swirls. πͺοΈπ¨
πΉ NASA/Juno
Voyager 1 is 24.7 billion km away after 48 years in space - yet itβs not even one light-day away. A testament to the staggering scale of our universe. π°οΈπ
Meet Hickson Compact Group 44! These 4 galaxies in Leo are distorting each other through gravity, destined to merge into one mega-galaxy. π
π· Peter Kennett