Planetary trio – Jupiter, Saturn, Mercury – low in west at dusk

For the first time since October 2015, sky watchers will have the chance to view a planetary trio, or 3 planets all bunched up together on the sky's dome. Two are Jupiter and Saturn, fresh from their much-viewed December conjunction. The 3rd planet is elusive Mercury.

Ancient Maya civilization used advanced water treatment technology

The oldest known example of a water treatment system in the Western Hemisphere was recently discovered in Guatemala.

Star trails over a tree-lined path

Photo of star trails over a tree-lined path in Iran.

Hostile space weather might not be all bad for exoplanet life

A new study from Northwestern University shows that solar flares - space weather - might not always be as dangerous for life on exoplanets as typically thought. In fact, it might even help astronomers discover alien life on distant worlds.

Meet PitRanger: Tiny rover designed to probe the lunar underworld

Researchers have been busily building a prototype of a 33-pound (15 kg) lunar mini-robot, set to be the key instrument in a future mission aimed at capturing high-definition images of moon pits.

Close and far moons of 2021

In the year 2021, the moon will swing to its farthest point from Earth on May 11, 2021, and then will come closest to Earth on December 4, 2021.

Lengths of lunar months 2021

Lunar months are the time between successive new moons. A lunar month is also called a lunation or a synodic month.

The sky in 2020

A collection of astronomical photos of 2020 from southern British Columbia, Canada. The music is 'Windswept' by Kevin Macleod.

New ice-mapping Mars mission slated for 2026 launch

The Mars Ice Mapper is a proposed Mars satellite being developed by NASA in collaboration with the Canadian Space Agency. Its job is to create detailed geographic maps of water ice across the surface of the red planet.