Scientists have discovered a galaxy with 9 rings around it. The rings are evidence of an earlier collision, and the rings are where new stars are forming.
Astronomers in Europe said they have discovered what might be the smallest exoplanet found so far. If real, it is smaller than our moon and orbits a pulsar.
Astronomers have used AI to connect meteor impacts on Mars with marsquakes. They found that seismic waves can travel faster through the planet than expected.
Lightsails for star travel sound like the stuff of science fiction. But researchers at Caltech have been studying the properties of potential lightsails in the lab.
Samples from asteroid Bennu brought back to Earth in 2023 contain molecular building blocks for life, evidence of ancient salty water, and something mysterious.