YR4 has a 2% chance of hitting Earth in 2032. Astronomers are tracking it to refine estimates of its size and orbit to see how much of a risk the space rock poses.

Trans-Neptunian objects (TNOs) are icy bodies that vary widely in size, from large dwarf planets like Pluto and Eris—each ...

NASA will use the James Webb Space Telescope to gather crucial data on the size of asteroid 2024 YR4, which has a small ...

Webb Telescope captures stunning new images of HH 30, revealing a dynamic protoplanetary disc where planets form.

NASA's James Webb Space Telescope (JWST) has recently made observations about galaxy clusters that will help shape our ...

New findings explain the Phoenix cluster's mysterious starburst. Data confirm the cluster is actively cooling and able to generate a huge amount of stellar fuel on its own.

The head of planetary defense at the European Space Agency discusses 2024 YR4, an asteroid with a small chance of striking ...

Discovered on December 27, 2024, asteroid 2024 YR4 is currently rated as a three on the Torino scale. Space agencies around the world are closely monitoring ...

Where is all the water that may form oceans on distant planets and moons? The SPHEREx astrophysics mission will search the ...

Chilling animations depict the apocalyptic impact that “city-killer” asteroid YR4 2024 could have if it did hit Earth — while ...

Most massive galaxies have black holes at their cores that emit energetic particles, heating the galaxy’s gas and dust.