Harvard physicist Avi Loeb revealed that the object is expected to approach Earth on December 17, speeding through the solar ...

Astronomers have discovered a new object that originated outside of our Solar System — only the third to be found.

Jupiter isn’t alone in this category; Saturn, Uranus, and Neptune are also gas giants, though Uranus and Neptune are often ...

I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the ...

The dwarf planet Sedna will fly nearer the Sun in 2076. A nuclear rocket or a solar sail spacecraft could reach it within 7 ...

An object that appears to be from beyond our Solar System has been spotted hurtling towards the Sun, which if confirmed would ...

Why is Mars barren and uninhabitable, while life has always thrived here on our relatively similar planet Earth?

The James Webb telescope has made another stunning discovery -- this time of a massive planet that could potentially sustain ...

The object was first noticed by NASA's Asteroid Terrestrial-impact Last Alert System (ATLAS), with further observations quickly pouring in from both professional and amateur astronomers worldwide.

NASA's James Webb Space Telescope has been unwaveringly focused on our universe. With its unprecedented power to detect and ...

Three new full-dome movies will highlight the July schedule at the University of Wyoming Harry C. Vaughan Planetarium.

Stars often whip their planets with solar winds and radiation, pull them ever closer with gravity and sear them with heat.