Latest Science News
House-Sized Asteroid 2023 HB4 Safely Passes Earth Today
A 48-foot asteroid designated 2023 HB4 is passing Earth at a safe distance of 4 million miles on April 12, 2026, posing no threat. NASA confirms it as a near-Earth object offering research opportunities on composition and trajectories.
The distance is over 16 times farther than the Moon's orbit.
NASA's Artemis II Crew Returns to Houston After Moon Mission
Artemis II astronauts Jeremy Hansen, Victor Glover, Reid Wiseman, and Christina Koch arrived in Houston today following their splashdown. The crew completed the first human Moon examination since Apollo, launched April 1, 2026.
They are reported happy and healthy after traveling 250,000 miles.
Artemis II Splashdown Success Off San Diego Coast
The Orion spacecraft carrying Artemis II crew splashed down at 8:07 p.m. ET off San Diego on April 11, 2026, at 38,000 km/h. NASA held a post-splashdown press conference confirming mission success.
Data analysis, including heat shield imagery, is underway.
Emperor Penguins Downgraded to Endangered by IUCN
Emperor penguins reclassified from Near Threatened to Endangered due to climate-driven sea-ice loss, projecting population halving by 2080s. The IUCN announcement highlights climate change as the primary factor.
This affects Antarctic breeding colonies severely.
Antarctic Fur Seals Now Endangered from Food Scarcity
Antarctic fur seals moved from Least Concern to Endangered after 50% population drop between 1999-2025 due to reduced food from climate impacts. IUCN cites diminished krill availability as key.
Conservation status updated this week.
March Sea Temperatures Hit Near-Record Highs
Global sea surface temperatures averaged 20.97°C in March 2026, second-highest on record per Copernicus Climate Change Service. This signals transition to El Niño conditions.
NOAA predicts El Niño persistence through 2026 end.
El Niño Likely to Form This Summer, Risking Hot Year
Multiple climate centers forecast El Niño development in summer 2026, with one-in-three chance of strong event in winter. Elevated sea temps pave way for abnormally hot year.
Impacts include weather extremes globally.
NASA Confirms No Threat from Asteroid Close Approach
Asteroid 2023 HB4, house-sized at 48 feet, passes 4 million miles away today, monitored as NEO. Astronomers use event for trajectory and composition study.
Safe distance exceeds lunar orbit significantly.
Artemis II Ushers New Era of Lunar Exploration
Artemis II mission sets stage for 2028 Moon landing, first crewed lunar flyby since Apollo. Crew examined Moon up close after 10-day journey.
Officials emphasize data for future missions.
IUCN Red List Updates Highlight Climate Threats
Two Antarctic species reclassified Endangered this week due to climate change effects on habitat and food. IUCN's global authority status underscores urgency.
Projections show severe population declines ahead.
Post-Mission Analysis Begins for Artemis II Heat Shield
Divers captured imagery of Orion heat shield post-splashdown for analysis. NASA plans data review in coming days to refine future missions.
Crew recovery prioritized before Houston return.