Astronomers using the W. M. Keck Observatory on Maunakea, Hawaiʻi Island are revealing new insight into the composition and ...

The skywatchers around the world, including in India will be treated to a rare and visually spectacular planet parade in mid- ...

Sky This Week is brought to you in part by Celestron. Friday, April 17New Moon occurs at 7:52 A.M. EDT. Spring is often ...

In the case of Saturn, Mars, and Mercury, they’ll look like a “planet pyramid,” or triangle, from April 16-19, too. From ...

On April 18, Mercury, Mars, Saturn, and Neptune align in the sky, but it might be hard to Tennesseans to spot. Here is what ...

April’s new moon brings dark skies, making it easier to see Venus, Jupiter, Mars and key constellations along with distant ...

For 140 years, the Ballarat Municipal Observatory in Mount Pleasant has kept its telescopes trained on the night sky, ...

It was a cold December night in 1959. I was 12 years old and eager to try out the new telescope that I got for Christmas. The ...

When Mohammed Sallam was chosen for a one-way trip to Mars, his life changed overnight. A decade later, he's still waiting ...

Enormous icicles suspend from cave ceilings like nature’s crystal decorations. The ice radiates blue and green tones that ...

The Apophis asteroid, once feared to hit Earth, is less than three years from making an unprecedented approach toward Earth.

Things are gearing up for the Giant Magellan Telescope, as its developers enter the final design phase before the project ...