A new explanation for the solar system's radioactive elements suggests Earth-like planets might be found orbiting up to 50 ...

Our Solar System is a carefully balanced celestial dance held together by a virtually perfect balance of gravity and inertia. The researchers were inspired by a puzzling fact: many Solar Systems like ...

On December 8, 2025, the Sun unleashed a powerful solar flare, an event that captivated the attention of scientists and space ...

Exoplanets are planets outside Earth's solar system. In 1995, a gas giant named 51 Pegasi b, which orbits a star similar to Earth's sun, etched its name in history as the first exoplanet ever ...

Scientists find that two hot stars passed near our solar system 4.4 million years ago, altering nearby interstellar clouds.

Of the seven Earth-sized worlds orbiting the red dwarf star TRAPPIST-1, one planet in particular has attracted the attention ...

Nearly 4.5 million years ago, two large, hot stars brushed tantalizingly close to Earth's sun. They left behind a trace in ...

Comet 3I/ATLAS nears Earth on December 19, 2025. This interstellar visitor displays an unusual green glow. Scientists are ...

How big it is: 865,000 miles (1.392 million kilometers) across How far away it is: 93 million miles (150 million km) What type of star it is: A yellow dwarf star The sun is the star at the center of ...

In the early 1980s, two Soviet-era missions, Venera 13 and 14, measured sound waves on Venus, producing a measurement of wind ...

Our Solar System is a carefully balanced celestial dance held together by a virtually perfect balance of gravity and inertia. Just how this cosmic waltz would look with a 'super-Earth' in place of the ...