Earth is a planet, too! Dr. Michelle Thaller explores how NASA investigates Earth using space-based satellites, and how that knowledge can save lives.
Join Sky & Telescope Contributing Photographer Babak Tafreshi for a live webinar to learn the secrets of stunning Milky Way photography.
Thanks to a record haul of new, ultra-distant quasars—powerhouses of light from the farthest reaches of the universe—astrophysicists can now piece together the rise of mighty objects in the early cosmos.
Dr. Michelle Thaller talks to two NASA astrobiologists on when and how we'll explore Europa's subsurface ocean, and what we might find there.
Purple halos around stars can be a problem when shooting with inexpensive camera lenses and telescopes. Here's how to fix them.
In astrophotography, to dither means to shift the pointing of the telescope slightly in random directions between exposures. Here's how it works, and why you should use it.
Dr. Michelle Thaller explores the story of how scientists discovered that the ozone layer was disappearing and how they moved to save it — and avert catastrophe.
Here's a great free download that uses a deck of playing cards to introduce you to the night's sky's constellations in a fun, entertaining way.
Here’s the info you’ll need to “save the date” for some of the top stargazing events in the U.S. and Canada for the coming year.
What’s inside a black hole? Wormholes? Alternate universes? If you fell into a black hole, only one thing’s for sure: its tidal forces would kill you.
Learn what a black hole is, what we mean by “singularity” and “ergosphere,” and why we think black holes are real.
Maybe this gift-giving season you got a shiny new telescope to call your own. Congratulations — you could be on your way to discovering many amazing far things in the night sky. Although most of them are so far and faint that just finding and detecting them is the challenge! Whether your new scope is…
Would you go into space if you knew your bones would turn into “pee brittle”? Dr. Michelle Thaller explores the effects of space on the human body.
Daylight ebbs to a minimum on Wednesday's winter solstice, but not for long. The very next day, the Sun turns back north and the cycle of light begins again.
Astronomers are debating the existence of a big planet beyond the orbits of Pluto and Neptune. Dr. Michelle Thaller talks with planetary scientists Scott Shepard and Mike Brown about when we'll discover it.
Interested in capturing stunning images of the Moon and planets? Join S&T's live astrophotography webinar on Monday, November 21st, and learn what it takes.
Osiris-REX recently began a 2-year journey to the asteroid Bennu. The Kavli Foundation spoke with three experts about what the spacecraft may discover.
The art of astrophotography can quickly turn into the art of cable management. Learn how to tame the cable monster and get back to photographing the night sky.
Michelle Thaller talks with three leading scientists about black holes - how do we know they exist, where do they come from, and how can we learn more about them without going too close?
Michelle Thaller speaks with NASA's Alex Young about the space agency's impressive fleet of Sun-monitoring spacecraft — including the upcoming Solar Probe Plus.
Can you shoot deep-sky objects from your backyard? That depends - how much time do you have?
All galaxies are fated to "die" and stop making stars. The reason may lie with the supermassive black hole lurking in their cores.
For years astronomers anticipated a planet orbiting Proxima Centauri. Michelle Thaller talks with astrophysicist Patricia Boyd about NASA’s ongoing search for exoplanets and what’s next for exploring other worlds.
Host Michelle Thaller speaks with Lucy McFadden, co-investigator of NASA’s Dawn Mission that traveled 130 million miles to orbit the asteroids Vesta and Ceres.
Host Michelle Thaller and eclipse-chaser Michael Kentrianakis talk about how an Alaska Airlines flight was diverted to view an eclipse, and where best to view the August 21, 2017, total solar eclipse.