"There is a growing chasm between theory and observation related to the early universe, which presents compelling questions ...

Dating to only a billion years after the big bang, JADES-ID1 may be the earliest, most distant galaxy protocluster astronomers have ever seen ...

A little more than a thousand years ago, monks at Saint Catherine’s Monastery in Egypt’s Sinai desert removed Western ...

Astronomers have produced the most detailed map yet of dark matter, revealing the invisible framework that shaped the Universe long before stars and galaxies formed. Using powerful new observations ...

This NASA/ESA Hubble Space Telescope image features an uncommon galaxy with a striking appearance. NGC 7722 is a lenticular galaxy located about 187 million light-years away in the constellation ...

Today’s observatories document every pulse and flash in the sky each night. To understand how the cosmos has changed over longer periods, scientists rely on a more tactile technology.

More people participating in the citizen science project Globe At Night could help fill gaps in what astronomers know about ...

Stargazers looking ahead to February’s highlights should make some time to look up not only during the night, but also during the day. In addition to the first solar eclipse of the year and a "planet ...

Straddling the celestial equator, the constellation is visible in both hemispheres ...

Long forgotten and hidden under layers of religious texts, the world’s earliest star catalog has just resurfaced. Scientists ...

NASA has scheduled the launch for the Artemis II moon rocket for no earlier than Feb. 8. WTOP will have details on the ...

Mercury, Venus, and Saturn put on an early-evening display in the west, while Jupiter dominates the rest of the night.