Mercury begins a rapid plunge toward the setting sun. By early July, Mercury is lost in the glare of the sunset. By late July, Mars begins to sink into the ...

Mercury will reach its greatest eastern elongation, marking the point where it is farthest from the Sun in the evening sky.

Less than two weeks later, on June 25, reports began to circulate of a second nova blossoming in the southern night sky, this ...

And astronomers have a brand-new, superpowerful eye with which to see the changing cosmos: the Vera C. Rubin Observatory in Chile. The Rubin Observatory released its first images last week, and ...

Both events represent classic novas, which are space explosions that are shorter-lived than supernovas, with such phenomena ...

By looking at the shifting of stars in photos from the New Horizons probe, astronomers have calculated its position in the ...

The image of supermassive black hole Sagittarius A * was created using data from the Event Horizon Telescope Collaboration.

L3Harris in Rochester played a pivotal role in building the Vera C. Rubin Observatory’s massive secondary mirror.

The 10-year survey is the primary mission of the Vera C. Rubin Observatory, located on a mountaintop at the edge of Chile’s ...

In an extraordinary celestial coincidence, two "new stars" —scientifically known as novae —are currently visible to the naked ...

A new gas giant world discovered by citizen scientists using data from NASA's exoplanet-hunting spacecraft TESS is cool, ...

Friday, July 4 Mercury reaches its greatest eastern elongation from the Sun, standing 26° from our star at 1 A.M. EDT. We’ll ...