NASA’s Solar Dynamics Observatory captured an X2.8-class solar flare and a pair of m-flares that preceded it in multiple wavelength. Reported to be the biggest flare since an X9.3 flare in Sept. 2017.

MIT astronomers utilized a space-based X-ray telescope to delineate critical features within a star system’s innermost region ...

The UK Space Agency (UKSA) has announced a significant collaboration with the United Nations Environment Programme’s International Methane Emissions Observatory (IMEO), reinforcing the UK’s leadership ...

When a faint green smudge appeared in images from a backyard telescope in Aguadilla, Puerto Rico, on Nov. 22, 2025, astronomers did not expect it to upend basic assumptions about how comets work. Yet ...