NASA

This second, as you’re reading these words, trillions of tiny particles are hurtling toward you! No, you don’t need to brace yourself. They’re passing through you right now. And now. And now. These particles are called neutrinos, and they’re both everywhere in the cosmos and also extremely hard to find.Neutrinos are fundamental particles, like electrons, so they can’t be broken down into smaller parts. They also outnumber all the atoms in the universe. (Atoms are made up of electrons, protons, and neutrons. Protons and neutrons are made of quarks … which maybe we’ll talk about another time.) The only thing that outnumbers neutrinos are all the light waves left over from the birth of the universe! Credit: Photo courtesy of the Pauli Archive, CERNPhysicist Wolfgang Pauli proposed the existen...

Space is a global frontier. That’s why we partner with nations all around the world to further the advancement of science and to push the boundaries of human exploration. With international collaboration, we have sent space telescopes to observe distant galaxies, established a sustainable, orbiting laboratory 254 miles above our planet’s surface and more! As we look forward to the next giant leaps in space exploration with our Artemis lunar exploration program, we will continue to go forth with international partnerships!Teamwork makes the dream work. Here are a few of our notable collaborations: Artemis ProgramOur Artemis lunar exploration program will send the first woman and the next man to the Moon by 2024. Using innovative technologies and international partnerships, we will explore m...

The global pivot toward government-backed satellite programs is redefining global EO strategies, shifting demand toward defense-grade, sovereign capabilities Paris, France [July 2, 2025] – The 18th edition of Novaspace’s Earth Observation Satellite Systems report, finds 5,770 EO satellites set to launch by 2034 as national defense priorities shape space strategy. As geopolitical instability drives interest in sovereign EO assets, defense and civil satellites are positioned to overtake commercial deployments . “A new generation of defense suppliers is emerging as countries look to promote the development of national EO ecosystems, with momentum expected to increase in the coming years,” says Federico Banfi, project manager at Novaspace. “This shift in priorities is acceleratin...

WASHINGTON — The Department of the Air Force is reconsidering its procurement of satellites for a low Earth orbit military constellation, pausing funding for the program in fiscal year 2026 while examining whether SpaceX’s Starshield satellites could provide the same capabilities at lower cost.  The Trump administration’s proposed 2026 budget would suspend procurement of data-transport satellites for the Proliferated Warfighter Space Architecture (PWSA), a mesh network of satellites designed for secure communications and missile tracking operated by the Space Force’s Space Development Agency. The outcome of the review could impact the procurement of as many as 140 satellites for Transport Layer Tranche 3, which the SDA had planned to order in 2026 for deployment in 2028. Chie...

This year’s summer solstice for the northern hemisphere arrives at 11:54 a.m. EDT, meaning today is the longest day of the year! The number of daylight hours varies by latitude, so our headquarters in Washington, D.C. will see 14 hours, 53 minutes, and 51 seconds of daylight. A lot can happen in that time! Let’s find out more.If you’re spending the day outside, you might be in the path of our Earth Science Satellite Fleet (ESSF)! The fleet, made up of over a dozen Earth observation satellites, will pass over the continental United States about 37 times during today’s daylight hours.  These missions collect data on atmospheric chemistry and composition, cloud cover, ocean levels, climate, ecosystem dynamics, precipitation, and glacial movement, among other things. They aim to do everything...