NASA advises looking toward the eastern sky before sunrise, particularly in mid to late April, when the comet will pass ...

Between April 5–8, a ‘sungrazer’ comet is expected to grace the New York City sky—if it survives its close pass by the Sun, ...

We now know that all these bright comets from the last two millennia — the Kreutz sungrazing family — share a common origin.

Each Monday, I pick out North America’s celestial highlights for the week ahead (which also apply to mid-northern latitudes in the northern hemisphere).

C/2026 A1 (MAPS) and C/2025 R3 (PanSTARRS) —could become visible in April. One may be super-bright or disintegrate, while the other may be more predictable.

Our solar system's famous "invader" might be as old as the Milky Way itself.

A small comet, named 41P, shocked scientists by suddenly reversing its spin, driven by uneven jets of gas near the Sun.

The first crewed mission of NASA's Artemis moon program may take off in a matter of days, with a launch window that opens on ...

The comet originated in the outer solar system and visits the inner solar system every 5.4 years.

Astronomers using NASA's Hubble Space Telescope have found evidence that the spinning of a small comet slowed and then ...

In 2017 NASA’s Hubble Space Telescope zoomed in on a comet as it passed around the sun. And then things took a more unusual ...