Astronomers suspect that a massive metallic cloud swirling in a nearby star system could be hiding a giant planet or dwarf ...

Overlooked in the Kepler data and discovered by a citizen scientist, HD 137010 b is one of the most interesteing exoplanets ...

Learn about the bright streaks that may represent recent geological activity on Mercury, which has been considered a dead planet in the past.

During a special observation run from Jan. 15 to Jan. 22, the Transiting Exoplanet Survey Satellite ( TESS) repeatedly ...

Earth's moon is both the brightest and the largest object in the night sky, in terms of apparent size, making it a ...

Artemis 2 will send a crew of four astronauts on a 10-day mission around the Moon. Here is the mission's flight path, step by step.

The beauty of a sunset is universal, it captivates those on Earth, painting the sky with brilliant colors. But what if you ...

Venus looks like Earth’s twin at first glance, yet its rotation behaves like a cosmic prank. The planet spins backward, ...

The dazzling lights of the aurora are created when high-energy particles from space collide with Earth's atmosphere. While ...

Penn Engineers have developed a novel design for solar-powered data centers that will orbit Earth and could realistically scale to meet the growing demand for AI computing while reducing the ...

The International Space Station, where astronauts have lived and worked for 25 years, is regularly visible to Earth. Here's ...