What’s happening to the big black hole in the center of our galaxy? It is sucking in matter from a swirling disk — a disk that is magnetized, it has now been confirmed. Specifically, the black hole’s accretion disk has recently been seen to emit polarized light, radiation frequently associated with a magnetized source. Pictured […]
In late 2021 there was a total solar eclipse visible only at the end of the Earth. To capture the unusual phenomenon, airplanes took flight below the clouded seascape of Southern Ocean. The featured image shows one relatively spectacular capture where the bright spot is the outer corona of the Sun and the eclipsing Moon […]
Discovered by accident, this manuscript page provides graphical insight to astronomy in medieval times, before the Renaissance and the influence of Nicolaus Copernicus, Tycho de Brahe, Johannes Kepler, and Galileo. The intriguing page is from lecture notes on astronomy compiled by the monk Magister Wolfgang de Styria before the year 1490. The top panels clearly […]
“One of my cornerstone pinnacles [is], ‘Show up to work [and] life with integrity and intent.’ So, accomplish your goals with integrity, intent, and a mission. Stick to that and have the confidence to do that, and be OK with messing up and failing, and have fun with those things.” — Meghan Everett, International Space […]
Looping through the Jovian system in the late 1990s, the Galileo spacecraft recorded stunning views of Europa and uncovered evidence that the moon’s icy surface likely hides a deep, global ocean. Galileo’s Europa image data has been remastered here, with improved calibrations to produce a color image approximating what the human eye might see. Europa’s […]
An Atlas-Centaur launched at 5:22 p.m. EST on March 27, 1969, to send Mariner 7 on its way to Mars. Mariner 7 joined its sister spacecraft, Mariner 6, on a journey that carried them within 2,000 miles of the red planet that summer. Mariner 6 was launched from Kennedy Space Center in Florida on Feb. […]
Globular star cluster Omega Centauri, also known as NGC 5139, is 15,000 light-years away. The cluster is packed with about 10 million stars much older than the Sun within a volume about 150 light-years in diameter. It’s the largest and brightest of 200 or so known globular clusters that roam the halo of our Milky […]
NASA’s Europa Clipper spacecraft will carry a special message when it launches in October 2024 and heads toward Jupiter’s moon Europa. The moon shows strong evidence of an ocean under its icy crust, with more than twice the amount of water of all of Earth’s oceans combined. A triangular metal plate, seen here, will honor […]
Almost every object in the featured photograph is a galaxy. The Coma Cluster of Galaxies pictured here is one of the densest clusters known – it contains thousands of galaxies. Each of these galaxies houses billions of stars – just as our own Milky Way Galaxy does. Although nearby when compared to most other clusters, […]
Two full-scale development model rovers that are part of NASA’s CADRE (Cooperative Autonomous Distributed Robotic Exploration) technology demonstration drive in the Mars Yard at the agency’s Jet Propulsion Laboratory in Southern California in August 2023. The project is designed to show that a group of robotic spacecraft can work together as a team to accomplish […]