Wednesday, February 4, 2026

NASA delayed its Artemis II lunar mission to March after a liquid hydrogen leak during a wet dress rehearsal forced engineers to end the countdown test early, with the four astronauts released from quarantine and returning to Houston.^[1]

Global renewable energy generation is expected to reach 11,900 terawatt-hours in 2026, overtaking coal as the largest source of electricity generation worldwide for the first time.^[2]

Astronomers have produced the most detailed map yet of dark matter, using powerful new observations to reveal the invisible framework that shaped the universe long before stars and galaxies formed.^[3]

The U.S. and India reached a trade deal reducing tariffs on Indian goods from 50% to 18%, after Prime Minister Modi agreed to halt Russian oil purchases and committed to buying more than $500 billion worth of American products.^[4]

Record-breaking snowfall has blanketed Japan, with some areas seeing more than double the usual volumes; at least 30 people have died since January 20 from the heavy snow, with several cities reporting accumulation of at least 135 centimeters.^[5]

NASA has completed its first major testing of nuclear reactor hardware for spacecraft propulsion in over 50 years, conducting more than 100 'cold flow' tests on a full-scale reactor engineering development unit throughout 2025.^[6]

France adopted its delayed 2026 budget, including €6.7 billion in additional military spending compared to 2025, clearing the way for a new nuclear-powered attack submarine, 362 armored vehicles, and new surface-to-air missiles.^[7]

Global battery energy storage systems are forecast to grow by 122 gigawatts this year, bringing total operational capacity to 363 gigawatts—a 50% increase—as costs continue to decline with utility-scale systems now reaching as low as $150 per kilowatt-hour in China.^[8]

Scientists have detected a complex, ring-shaped molecule containing 13 atoms—including sulfur—in interstellar space for the first time, a discovery that helps link simple space chemistry with the complex organic building blocks found in comets and meteorites.^[9]

The Vera C. Rubin Observatory has discovered the fastest-spinning large asteroid ever observed—a 710-meter-wide space rock that completes one full rotation every 1.88 minutes—along with nearly 2,000 other previously unknown asteroids in just seven nights of early observations.^[10]