Good Morning, Earth! – NASA

Over the past 250 years, the number of “planets” in our solar system has ranged from six to nine — and, briefly, even 11 — depending on what astronomers knew at the time and how they defined a planet. As the United States prepares to celebrate its 250th anniversary, that changing tally offers a unique…

A Katalyst engineer runs tests on LINK while the satellite is inside the Pegasus XL rocket attached to the Stargazer aircraft at NASA’s Wallops Flight Facility on the evening of Tuesday, June 16, 2026. Image Credit: NASA/Ron Beard Read More https://www.nasa.gov/image-detail/stargazer-aircraft-with-link-spacecraft-at-nasa-wallops/Copy URL to clipboard> DownloadShare A Katalyst engineer runs tests on LINK while the satellite…

Jeff Seibert, our video editor, recorded the Artemis II launch. Here are his photos and video. We hope you find them as amazing as do we. Jeff had three cameras in the image below. NASA’s Space Launch System rocket carrying the Orion spacecraft with NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission…

In this illustration, two neutron stars are beginning to merge, blasting a jet of high-speed particles and producing a cloud of debris. Among the debris are “r-process” elements, such as radioactive plutonium-244. The amount of this element in Earth’s oceanic crust suggests such an event occurred near Earth more than 100 million years ago.A. Simonnet…

  Introduction: In this article, I’ll explore the intricate challenges that spacecraft encounter during reentry in manned space missions. The journey back to Earth’s surface marks a pivotal phase, demanding meticulous engineering and navigation to ensure the safety of astronauts and the integrity of the spacecraft. As a spacecraft reenters the Earth’s atmosphere, it faces…

A potentially habitable rocky world has been found in the habitable zone around a red dwarf just 25 light-years from us. However, faced with a hostile wind of radiation from its host star, it remains unclear whether this new exoplanet supports an atmosphere, or the possibility of life. Nevertheless, astronomers are celebrating the discovery. “This…