How we know black holes exist
Despite their invisibility, black holes noticeably modify their environments by producing high-speed jets and abnormally quick stellar movements.
Using decades of observations of stars at the Milky Way’s center, scientists know the mass of the black hole … and they’ve also created an animation illustrating how those stars move.
Probing Titan’s seas of sand
Whether on Saturn’s largest moon or Earth, the ripples of sand dunes tell scientists about the local weather and surface phenomena.
How well can you recognize your home planet’s landscape?
Turning clouds of darkness into stars of light
Small, dark, and ubiquitous, Bok globules offer astronomers an inside look at how low-mass stars form.
The Modoc Plateau beckons amateur astronomers
This California location has beautiful scenery, lots of amenities, and spectacular dark skies.
Use Facebook to get more out of your hobby
These nine tips will help you get the most out of this social network, connecting you to astroimagers, astronomy clubs around the world, and even space missions
How the constellations came to be
The starry figures that fill our sky result from more than 6,000 years of human imagination.
Imagers who specialize in wide-field views provide superb images of the constellations.
Astronomy tests Orion’s color video camera
The StarShoot Deep Space Video Camera displays celestial objects in real time and captures video frames.