In 2025, NASA faced unprecedented uncertainty as it grappled with sweeping layoffs, looming budget cuts, and leadership ...

A technique called interferometry can greatly magnify tiny objects on the sky, and is powerful enough to reveal the surfaces ...

This makes it appear correspondingly smaller through a telescope—infinitesimally smaller, in fact, appearing as only a point ...

This month will bring some striking celestial sights, including one of the year’s best meteor showers and a glowing ...

The beginning of winter is a great time to be taking up astronomy, with long dark nights and a multitude of bright stars on ...

In 1949, famed mathematician and physicist John von Neumann delivered a series of addresses at the University of Illinois, where he introduced the concept of the "universal constructor." The theory ...

As the final month of the year begins, early evenings offer just one naked-eye planet. Fortunately for us, that lone world is Saturn. The ringed planet lies high in the northwest as twilight fades, ...

Bright stars and a lone bright planet are visible at dusk as December begins. The Summer Triangle of Vega, Altair and Deneb ...

Bright stars and a lone bright planet are visible at dusk as December begins. The Summer Triangle of Vega, Altair and Deneb is well up in the west and getting lower as the month progresses; Saturn ...

As twilight deepens the week of November 24 to 28, the waxing crescent moon appears in the south to southwest, above the setting Teapot asterism.

The final integration of the telescope's major observatory components took place on Nov. 25 inside NASA's Goddard Space Flight Center in Greenbelt, Maryland, where engineers brought together the ...

This infrared view offers the clearest look yet at how dwarf galaxies merge, evolve, trade gas and ignite waves of new stars.