Climate

Earth Observatory Science Earth Observatory Winter Grips the Michigan Mitten 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

NASA astronauts Chris Williams and Zena Cardman are seen here using the ISS ham radio during a school contact inside the International Space Station’s Columbus laboratory module on Nov. 28, 2025. NASA The Expedition 74 trio aboard the International Space Station checked out ultrasound gear, inspected advanced sample processing hardware,Continue Reading

NASA/Keegan Barber The Space Shuttle Challenger Memorial is seen during a wreath laying ceremony that was part of NASA’s Day of Remembrance, Thursday, Jan. 22, 2026, at Arlington National Cemetery in Arlington, Va. Wreaths were laid in memory of those men and women who lost their lives in the questContinue Reading

On a sunny, warm Sunday MIT students, staff, and faculty spread out across the fields of Hannan Healthy Foods in Lincoln, Massachusetts. Some of these volunteers pluck tomatoes from their vines in a patch a few hundred feet from the cars whizzing by on Route 117. Others squat in the shadeContinue Reading

Observe the Moon … International Observe the Moon… Public Event Observe the Moon Night About Overview Team Past Events FAQ Code of Conduct Featured Observers How to Host The Basics Event Materials Sample Event Find a Partner Participate! Observe at Home Connect Newsletter Participation Certificate Resources Moon Map Activities MultimediaContinue Reading

At a high level, ammonia seems like a dream fuel: It’s carbon-free, energy-dense, and easier to move and store than hydrogen. Ammonia is also already manufactured and transported at scale, meaning it could transform energy systems using existing infrastructure. But burning ammonia creates dangerous nitrous oxides, and splitting ammonia moleculesContinue Reading

Earth’s Moon … Earth’s Moon Daily Moon Guide Moon Home Facts Moon Facts Top Questions By the Numbers Inside & Out Composition Formation Atmosphere Craters Moonquakes Weather Water & Ices Solar Wind Moon in Motion Phases Eclipses Supermoons Tides Tidal Locking Moonlight Observe Daily Moon Guide Observe the Moon NightContinue Reading

David Painemal Research Physical Scientist, Climate Science Branch, Science Directorate, NASA Langley Research Center About Dr. David Painemal is a Research Physical Scientist for the Science Directorate at NASA Langley Research Center. He joined the CERES group as a NASA postdoctoral fellow, later transitioning into a scientist for 3 NASAContinue Reading

Epaulette sharks can reproduce without any measurable increase in energy use, stunning researchers who expected egg-laying to be costly. Scientists tracked metabolism, blood, and hormone levels through the entire reproductive cycle and found everything stayed remarkably stable. This efficiency suggests these sharks have evolved to optimize energy in ways notContinue Reading