The year's brightest comet streaks by Earth this weekend
Photos: Wonders of the universe
This is an artist's depiction of a black hole about to swallow a neutron star. Detectors signaled this possible event on August 14.
Hide Caption
1 of 124
Photos: Wonders of the universe
This artist's illustration shows LHS 3844b, a rocky nearby exoplanet. It's 1.3 times the mass of Earth and orbits a cool M-dwarf star. The planet's surface is probably dark and covered in cooled volcanic material, and there is no detectable atmosphere.
Hide Caption
2 of 124
Photos: Wonders of the universe
An artist's concept of the explosion of a massive star within a dense stellar environment.
Hide Caption
3 of 124
Photos: Wonders of the universe
A star known as S0-2, represented as the blue and green object in this artist's illustration, made its closest approach to the supermassive black hole at the center of the Milky Way in 2018. This provided a test for Einstein's theory of general relativity.
Hide Caption
4 of 124
Photos: Wonders of the universe
Galaxy NGC 5866 is 44 million light-years from Earth. It appears flat because we can only see its edge in this image captured by NASA's Spitzer Space Telescope.
Hide Caption
5 of 124
Photos: Wonders of the universe
The Hubble Space Telescope took a dazzling new portrait of Jupiter, showcasing its vivid colors and swirling cloud features in the atmosphere.
Hide Caption
6 of 124
Photos: Wonders of th