The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

The $10 billion orbiting observatory will give astronomers a better sense of the near-Earth asteroid 2024 YR4's size and ...

Using the X-ray Polarimetry Explorer (IXPE) and Neutron star Interior Composition Explorer (NICER), Indian astronomers have ...

Please note that more material may be added to this page periodically, so checking back occasionally is encouraged. The NASA AAA program currently also offers an Astronomy Academy for teacher ...

Using an instrument on the 4.1-meter Southern Astrophysical Research Telescope, researchers have obtained the first astronomical spectrum using skipper charge-coupled devices (CCDs). The results ...