Stefanie Waldek

Stefanie Waldek

Contributor

Articles by: Stefanie Waldek

The moon and Mars (tiny orange dot) appear side by side in the sky before an occultation

Mars is about to be eclipsed by the moon. Here's how to watch.

By Stefanie Waldek published

On Monday (Jan. 30), the moon will pass in front of Mars from the perspective of Earth in what's known as an occultation.

This artist's concept shows a young star surrounded by a dusty protoplanetary disk. This disk contains the raw material that can form planets as the star system matures. Even in the closest star-forming regions, such disks are tiny and difficult to observe directly, but their strong infrared glow can easily be seen by the detectors on the Spitzer Space Telescope.

Deep space 'hurricanes' could point the way to alien worlds

By Stefanie Waldek published

When new planets form in distant solar systems, they carve out 'hurricanes' and 'vortices' in the surrounding dust that could lead astronomers straight to them.

The asteroid Didymos and its moonlet Dimorphos are shown in a composite image taken by DART's DRACO instrument on July 27, 2022.

NASA's asteroid-slamming DART spacecraft catches 1st look at target (photo)

By Stefanie Waldek published

Using its DRACO camera, DART has imaged the asteroid Didymos and its moonlet Dimorphos.

A fireball observed by the CA000P Global Meteor Network camera in Ontario on April 17.

Massive fireball scattered loads of meteorites across southern Ontario

By Stefanie Waldek published

On Sunday (April 17), skywatching cameras in Ontario recorded a massive fireball that likely produced tens to hundreds of grams of meteorites.

An artist's representation of a supermassive black hole.

Could the secret of supermassive black holes lie in ultralight dark matter?

By Stefanie Waldek published

Though scientists know there's a supermassive black hole at the center of most galaxies, they can't explain how the gravitational giants formed.

Other versions of this page are available with specific content for the following regions: