4+ hour, 2+ min ago   (829+ words) Sub-Neptune exoplanets, exoplanets that are slightly smaller than Neptune, have been designated as the most common type of planet in the Milky Way Galaxy based on their vast discovery numbers, totaling almost 3,300 out of the more than 6,300 confirmed exoplanets to…...

12+ hour, 56+ min ago   (128+ words) Black holes represent some of the most extreme environments in the universe. They’re the sources of the strongest consistent gravitational fields, which allows us to test Einstein’s Theory of General Relativity to an extent that’s impossible with small objects. But…...

1+ day, 27+ min ago   (777+ words) “Disclosure Day” is nigh! We’re not talking about end times for UFO believers, but about this week’s debut of Steven Spielberg’s latest movie about space aliens. “Disclosure Day” is something of a second coming for the classic alien sci-fi movie…...

1+ day, 1+ hour ago   (153+ words) SpaceX's Starship super-rocket deployed operational next-generation Starlink satellites for the first time during its 13th flight test, which addressed snags that arose in the previous test....

1+ day, 6+ hour ago   (173+ words) Instead, they would rely on robust, mass producible lasers firing longer pulses. Typically, they envision them being in the micro- to milli-second range, simply to keep data transfer at a reasonable pace across the light years. However, there is a…...

1+ day, 6+ hour ago   (322+ words) At the same time, the survey suggests that many voters seem to recognize the tangible benefits space exploration can provide on Earth. Economic growth, job creation, technological innovation, and national security ranked at the very top of their concerns when…...

1+ day, 10+ hour ago   (112+ words) When we think of Mars as the “Red Planet”, the image that comes to mind is just that - a lot of red. That comes from the oxidization of the dust and rocks that cover the planet's surface, but there are…...

1+ day, 22+ hour ago   (759+ words) Comets are known for providing breathtaking observations of their long and shiny tails when they travel too close to the Sun. This happens because comets are made of ice and primarily orbit far from the Sun, but as their icy…...

1+ day, 23+ hour ago   (302+ words) The worlds of the Solar System offer up exciting and (so far) mostly pristine places for planetary scientists to study. As space missions continue to travel to Mars, Europa, asteroids, and other worlds, questions arise about keeping them safe for…...

2+ day, 1+ hour ago   (142+ words) The location of Omega Centauri is shown relative to stars in the southern sky as seen during early evening in late winter and spring. Credit: NOIRLAB/Carolyn Collins Petersen Said Matthew Whitaker, a postdoctoral researcher at the University of Utah…...