Miocene South America was packed with giant prey—and the predators hunting them were just as spectacular. Fossil bite marks suggest crocodylians, especially the enormous Purussaurus neivensis, were more important predators than mammals in this ancient tropical ecosystem. At around seven meters long, Purussaurus may even have helped control populations ofContinue Reading
APOD Science APOD APOD: 2026 August 20 – The… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss APOD Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written byContinue Reading
Earth Observatory Science Earth Observatory An Uncommon Drifter in the… Earth Earth Observatory Image of the Day EO Explorer Topics All Topics Atmosphere Land Heat & Radiation Life on Earth Human Dimensions Natural Events Oceans Remote Sensing Technology Snow & Ice Water More Content Collections Global Maps World of ChangeContinue Reading
Forecasters say July’s heat and dryness rapidly changed fire conditions across western Montana, and a return to warmer temperatures won’t help. By Mosabber Hossain Firefighters are gaining ground on three large wildfires that have burned more than 47,000 acres across southwestern Montana, but unhelpful warmer temperatures, lower humidity and breezyContinue Reading
California has adopted the toughest new rules in the country that require homeowners to manage the plants around their houses. Fire experts say it helps protect houses from burning, but public pushback has been strong. (Image credit: Mario Tama/Getty Images)Continue Reading
Explore This Section Voyager Home News Mission Updates Voyager Stories News Media Contacts Mission Overview Status Science Timeline Spacecraft -Voyager 1 -Voyager 2 The Golden Record Overview The Cover The Contents The Making of Galleries Videos Posters Making of the Golden Record Images on the Golden Record Images Voyager TookContinue Reading
NASA Ames Research Center Contact email: sam.kim@nasa.gov phone: 650-604-4384 The post Samuel Kim appeared first on NASA Science., Read MoreContinue Reading
1 min read NASA TechLeap Prize: Orbital Clarity Challenge The Orbital Clarity Challenge — the sixth in the NASA TechLeap Prize series — is a collaborative effort between NASA’s Heliophysics Division, Flight Opportunities program, and Center of Excellence for Collaborative Innovation. The Heliophysics Division studies space weather, including how it heats and expands Earth’sContinue Reading
NASA’s X-59 quiet supersonic research aircraft continues flight testing at supersonic speeds on Wednesday, June 10, 2026, along the Bell X-1 Supersonic Corridor in California in support of NASA’s Quesst mission. Initial supersonic flights help the team evaluate the aircraft’s performance as testing progresses toward the speed and altitude plannedContinue Reading
From left, Expedition 75 flight engineers Anil Menon of NASA (partially obscured and wearing the spacesuit with a red stripe on the legs) and Sophie Adenot of ESA (European Space Agency) work together during a six‑hour and 23‑minute spacewalk on Aug. 18, 2026. NASA The Expedition 75 crew members cleanedContinue Reading
Explore This Section Home Framework for Heliophysics Education About Helio Big Idea 1.1 Helio Big Idea 1.2 Helio Big Idea 1.3 Helio Big Idea 2.1 Helio Big Idea 2.2 Helio Big Idea 2.3 Helio Big Idea 3.1 Helio Big Idea 3.2 Helio Big Idea 3.3 Helio Missions Helio Topics EducationalContinue Reading
Explore This Section Home Framework for Heliophysics Education About Helio Big Idea 1.1 Helio Big Idea 1.2 Helio Big Idea 1.3 Helio Big Idea 2.1 Helio Big Idea 2.2 Helio Big Idea 2.3 Helio Big Idea 3.1 Helio Big Idea 3.2 Helio Big Idea 3.3 Helio Missions Helio Topics EducationalContinue Reading
Explore This Section Home Framework for Heliophysics Education About Helio Big Idea 1.1 Helio Big Idea 1.2 Helio Big Idea 1.3 Helio Big Idea 2.1 Helio Big Idea 2.2 Helio Big Idea 2.3 Helio Big Idea 3.1 Helio Big Idea 3.2 Helio Big Idea 3.3 Helio Missions Helio Topics EducationalContinue Reading