Meet Crux, the constellation of the Southern Cross

Crux, the constellation of the Southern Cross, is a hallmark of southern skies and contains the open cluster known as the Jewel Box.

Joplin tornado: 15-year anniversary of a disaster

It’s been 15 years since the Joplin tornado killed more than 150 people. What is the town of Joplin, Missouri, like today?

Meet Regulus, Leo the Lion’s Heart and brightest star

The bright star Regulus in Leo the Lion is prominent in the evening sky in May. It looks like a single point of light, but is really 4 stars.

2026 name list for Atlantic hurricanes: Is yours among them?

The forecasts for Atlantic hurricanes and tropical storms are out. And the hurricane names for 2026 are ready. What'll happen next?

Ice volcanoes on Ganymede? New promising candidates found

Are there ice volcanoes on Ganymede? A new international study reveals several good candidates on Jupiter's large ocean moon.

Searching for Earth-sized exoplanets with the POET mission

In 2029, Canada's POET mission will start searching for Earth-sized exoplanets as well as super-Earths. It will focus on smaller, cooler stars like red dwarfs.

Cumulonimbus clouds bring thunderstorms: How to spot them

Cumulonimbus clouds, sometimes called thunderheads, are towering formations that can bring severe storms such as hail, lightning, flooding and tornadoes.

Synchronous fireflies light up these national parks

The synchronous fireflies are back! These lightning bugs flash in harmony in the Great Smoky Mountains and other nearby parks from mid-May to mid-June.

Constellations and signs: What’s the difference?

What is the difference between the signs of the zodiac and the constellations of the zodiac? Astronomer Guy Ottewell illustrates and discusses this difference.

Interstellar turbulence in the Milky Way distorts light

For the 1st time, astronomers have directly detected how interstellar turbulence distorts the light from distant objects in our galaxy.