We measure the extremely long distances between things in space by light years. A light year is the distance that light travels in one Earth year. Light travels at about 300,000 kilometres per second.

Observations from NASA’s Juno spacecraft reveal that Jupiter’s strong magnetic field and the unique properties of its plasma ...

In October 1604, astronomer and mathematician Johannes Kepler spotted a new star in the sky and began tracking it. Over the course of several weeks, the star remained visible in the daytime and ...

Astronomers tracking an interstellar object flying through the solar system think it comes from a star at least 8 billion ...

Hubble Space Telescope imagery created an HD look at the gas giant planet Jupiter. Credit: NASA Goddard Space Flight Center ...

The science behind why the Earth will spin just a little bit faster on July 9, July 22, and August 5, this year.

Astronomers have spotted centimeter-sized “pebbles” swirling around two infant stars 450 light-years away, revealing the raw ...

Other citizen science groups contributed as well, including the TESS Follow-up Observing Program Sub Group 1 (TFOP SG1) and ...

Venus: Venus dazzles in the eastern sky before sunrise, shining brightly for a couple of hours each morning. It’s joined by ...

Once again, Elon Musk is front-page news across the world - but this time, the disruption is not about electric cars or space travel. It is about American politics. After months of visible friction ...

The planets in order from the Sun are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. If you include the ...

The first ever recorded 'planet with a death wish' orbits so close to its host star that it triggers huge flares of radiation ...