Galaxies

In 1984, astronaut Dale Gardner performed an untethered spacewalk to capture the Westar VI satellite😳

Io, Jupiter’s innermost Galilean moon, is the most volcanically active body in our solar system. It’s covered in hundreds of volcanoes, some spewing plumes of sulfur hundreds of miles high.

NASA’s James Webb Space Telescope has captured the birth of a star! The stunning image reveals HH 30, a protostar in the Taurus Molecular Cloud, wrapped in a protoplanetary disk with powerful jets. This rare glimpse into star and planet formation, 450 light-years away, offers unprecedented insight into the cosmos.

Patience pays off. 📸 @leosens

Hubble Reveals Eerie Glimpse of a Dying Star’s Final Exhalations Roughly 3,000 light-years from Earth, the dying star U Camelopardalis — or U Cam — offers a stunning view into the last stages of stellar life. In a striking Hubble image, U Cam appears to release an almost perfectly spherical bubble of gas, formed when helium ignites in a shell around its collapsing core. This rare type of carbon star — rich in carbon instead of oxygen — periodically “coughs” every few thousand years, ejecting layers of gas into space and forming delicate, expanding shells reminiscent of cosmic smoke rings. As U Cam nears its final chapter, powerful stellar winds strip away its outer layers, at times removing nearly half its mass. Though the star itself is barely a pixel in Hubble’s frame, the surrounding gas cloud tells a much grander story—one of change, fading light, and interstellar legacy. Eventually, U Cam will cool into a white dwarf, softly glowing at the heart of a planetary nebula. Unlike stars that explode in dramatic supernovae, U Cam’s farewell will be quiet—a gentle exhale of stardust into the cosmos. Credit: ESA/Hubble

According to the NY Post someone made $1.1mln betting on the events related to the war on @polymarket. What was odd was that that trader joined in June as all info is public on the platform. #polymarketpartner

In just 66 years, humanity advanced from the Wright brothers’, 12-second flight over a North Carolina beach to landing astronauts on the Moon—an extraordinary leap that turned the dream of flight into the conquest of space.

Stunning sun prominence captured! ☀️ 📸 @aj.smadi

A joint project by NASA and Toho University, powered by a high-performance supercomputer, has identified the year 1,000,002,021 as the time when the Sun’s increasing luminosity will render Earth permanently uninhabitable. Reports from BGR and Yahoo, based on an April study in LaGrada, explain that the Sun’s gradual brightening will eventually push Earth’s surface temperatures beyond the boiling point of water, leading to the loss of oceans and atmosphere within about a billion years. Meanwhile, earlier research by Ozaki and Reinhard published in Nature Geoscience indicates that Earth’s atmospheric oxygen could vanish hundreds of millions of years earlier, highlighting the fragile and temporary nature of our planet’s life-supporting conditions.

Astronaut Bruce McCandless II became the first human being to do a spacewalk without a safety tether linked to a spacecraft. In 1984, he floated completely untethered in space with nothing but his Manned Maneuvering Unit keeping him alive. “It may have been a small step for Neil,” he said, “but it’s a heck of a big leap for me.”

This is SN 1993J, a supernova that happened in M81, a galaxy located in the constellation Ursa Major, about 11 million light-years away.

One of the most interesting perspectives of the Moon you will ever see🌓 📸 @_ibatullin_ildar_