The phases of the Moon are determined by the relative positions of the Moon, Earth, and Sun.
Few amateurs have looked through a telescope and not imagined what it would be like to take a photo of the target in the eyepiece. I know I did when I got my first telescope. But back then, astrophotography was practically a black art: 35mm film was the only medium of choice, and it required…
The Kavli Foundation hosted a Q&A with three astronomers to probe the recent discovery of hard-to-produce heavy elements in a nearby dwarf galaxy. The discovery sheds light on stellar histories and galactic evolution.
Prepare for the 2017 solar eclipse with these basic facts and other resources.
Name Location Date Winter Star Party West Summerland Key, FL Feb Hodges Gardens Star Party Florien, LA Mar Delmarva Spring Star Gaze Tuckahoe State Park, MD Mar Southern Star Astronomical Convention Little Switzerland, NC Apr Mid-South Star Gaze French Camp, MS Apr Northeast Astronomy Forum Suffern, NY Apr Astronomy Day (spring) Everywhere! Apr/May Texas Star…
It's easy to take high-quality images of the lunar disk.
Learn how powerful new telescopes and techniques are enabling scientists to probe planets in the earliest stages of development.
To mark the start of a new era of astronomy, three principal LIGO researchers speak with The Kavli Foundation on their epic discovery and how it will transform the way we see the cosmos.
Crowd-sourcing the universe: Thanks to online portals, legions of volunteer astronomers are turning their eyes to the sky and doing extraordinary science. Three scientists discuss the future of citizen astronomy.
Our Constellation Basics webinar provides background information about the major winter constellations. Here are some accompanying online resources.
Asterisms appeal to our playful side but also serve as key waypoints in the sky for identifying fainter stars and constellations.
A newfound alien world orbiting a small, nearby star could be one of the first exoplanets scientists get to investigate in detail. Three astrophysicists discuss the possibilities.
Sky & Telescope is starting a series of webinars with premier astrophotographers that have a look in each of the image-processing software on the market today: our first is an overview of PixInsight with guest expert Warren Keller.
Watch a Q&A with two astronomers on the promise of Hubble's successor telescope, courtesy of The Kavli Foundation. Scientists have unveiled a bold proposal for a giant new space-based telescope that would be far more powerful than today's observatories. Called the High Definition Space Telescope (HDST), the instrument is essentially a supersized Hubble Space Telescope,…
Learn to see more detail on Jupiter by drawing at the eyepiece.
Advances in imaging technology should make amateurs give these cameras a second look.
Here’s an easy technique for creating expansive images of the Sun and Moon using modest sensors.
Expanding the spectral response of your camera opens up many new imaging opportunities.
Three experts joined The Kavli Foundation for a live Q&A to discuss New Horizons' long journey to the distant and fascinating world of Pluto.
Improve your deep-sky images with this innovative program.
Video can boost your telescope’s reach by leaps and bounds.
We finally know the ingredients that fire up a particular kind of supernova. Four researchers explain why a better understanding of how certain stars die can help reveal the evolution of the cosmos and its galaxies.
A new exoplanet closely matches what astronomers think Jupiter looked like in its infancy. Astrophysicist Bruce Macintosh of the Kavli Institute for Particle Astrophysics and Cosmology at Stanford discusses why this discovery might help us understand how planets arise.
Follow these simple suggestions to get the most out of your CCD images.
Capturing the Earth and sky in one great composition is surprisingly easy.