Hawai'i's Kīlauea volcano erupted again on Tuesday, prompting National Park Service officials to warn visitors of potential air quality threats.
The latest: The Big Island volcano, one of the most active in the world, reactivated at several vents along the crater floor after an overnight pause, per a Tuesday statement from the U.S. Geological Survey (USGS) that noted volcanic activity was confined to this area and the downdropped block within the caldera.
NASA's Parker Solar Probe will make history during a flight around the Sun on Christmas Eve.
Why it matters: "No human-made object has ever passed this close to a star, so Parker will truly be returning data from uncharted territory," said Nick Pinkine, Parker Solar Probe mission operations manager at the Johns Hopkins Applied Physics Laboratory (APL) in Maryland, in a statement.
