A spectral figure has emerged from the solar surface during this Halloween period. This cosmic optical illusion, captured by NASA's space observatory, reveals a face with luminous features

Avi Loeb suggested that if 3I/ATLAS is a spacecraft, it may use its proximity to the Sun's powerful gravitational pull while hidden from us.

As 3I/ATLAS approached the inner solar system in September, the Nordic Optical Telescope in Spain's Canary Islands recorded a tail forming after earlier images had shown an "anti-tail," a plume that seemed to point toward the sun.

The sun is a dynamic part of our solar system, and it throws plasma and radiation out into space regularly. But not all of those events are created equal.

Astronomers have discovered a surprisingly "pristine" red giant with the lowest concentration of heavy elements ever seen in a star. It is likely a direct descendant of one of the universe's first stars.

Mercury currently appears as a bright "evening star" in the southwestern sky at sunset. Mercury will reach its greatest eastern elongation on Oct. 29, marking one of the best evenings to see the planet this fall as it appears farthest from the sun's glare in the twilight sky.

Astronomers have used simultaneous ground-based and space-based observations to measure the temperature and velocity of gas ejected from a young sun-like star. The result showed a two-component ejection consisting of a hot fast component followed by a slower,

Astronomers recently peered deep into space and found that an old, faint white dwarf named LSPM J0207+3331, located about 145 light-years away, is still consuming the rocky remains of its former planets.