Astronomers have identified a potential third interstellar object passing through the solar system, provisionally designated 3I/ATLAS or A11pl3Z. Discovered by the ATLAS survey on July 1, 2025, and confirmed through pre-discovery observations, the object is traveling at approximately 66 kilometers per second (about 152,000 miles per hour). It is estimated to be between 10 and 20 kilometers (up to 25 miles) in diameter. The European Space Agency and NASA have confirmed that the object is not in orbit around the Sun, indicating an origin outside the solar system. Currently near Jupiter, the comet-like body is moving toward the inner solar system and is expected to make its closest approach to Earth in October 2025, though NASA states it poses no threat to the planet. The discovery has prompted worldwide telescope observations to study its trajectory and composition. This marks the third known interstellar visitor after ‘Oumuamua and 2I/Borisov. Scientists are actively investigating the object's characteristics and trajectory to better understand its nature before it exits the solar system.
Birth of a New Star Astronomers have captured the young star system HOPS-315 using the ALMA radio telescope and the Webb Space Telescope. It is located 1,300 light years from Earth. The image shows the early stages of the star's formation. Crystalline mineral particles are https://t.co/92yXcUSFou
Planets may start forming before stars even finish growing https://t.co/E2o7P2r1FY
Storms In Jupiter's South Temperate Belt Source: NASA/JPL-Caltech/SwRI/MSSS / Thomas Thomopoulos https://t.co/OGEmagZE2M