Sunday, April 5, 2026

The sungrazing comet C/2026 A1 (MAPS) reached perihelion on April 4, passing approximately 161,000 km from the Sun's surface, where it appeared to begin disintegrating; if any fragments survive, they may become visible low in the western sky after sunset in the coming days.^[1]

Undergraduate students at the University of Chicago have identified one of the oldest known stars in the universe using Sloan Digital Sky Survey data; the star is composed almost entirely of hydrogen and helium and migrated into the Milky Way from the Large Magellanic Cloud billions of years ago.^[2]

Astronomers using NASA's TESS telescope have found evidence that aging red giant stars are destroying the giant planets orbiting closest to them; close-in planets become increasingly rare around more evolved stars, suggesting many have already been gravitationally pulled inward and swallowed.^[3]

NASA's Artemis II crew is now more than halfway to the Moon aboard the Orion spacecraft, with crew members preparing the cabin for their lunar flyby on April 6, practicing medical response procedures, and testing the spacecraft's emergency communications system in deep space.^[4]

Bosnia and Herzegovina qualified for the FIFA World Cup for the first time since 2014 after defeating Italy 4-1 on penalties in a dramatic playoff final in Zenica, sending four-time champions Italy to their third consecutive World Cup absence.^[5]

French President Emmanuel Macron arrived in South Korea for a state visit after meeting with Japanese Prime Minister Sanae Takaichi in Tokyo, where he emphasized Europe's reliability in contrast to uncertainty surrounding U.S. policy during the Iran conflict.^[6]

The productronica Shanghai 2026 electronics manufacturing exhibition concluded after three days, drawing over 67,000 visitors to see the latest innovations in intelligent manufacturing, robotics, AI-enhanced quality inspection, and wiring harness processing for electric vehicles.^[7]