Sun Worship in Cambridge
On a few days each year, sunlight shines all the way down an 825-foot-long corridor at the Massachusetts Institute of Technology, a phenomenon that has been dubbed MIThenge.
A Galaxy when Galaxies Were Young
News media worldwide are reporting today on the new "farthest galaxy ever found," but the discovery is not quite as definite as it’s being made out.
R. Jay GaBany Wins Chambliss Award
California astrophotographer R. Jay GaBany wins the 2011 award for cutting-edge amateur research.
"Hidden Treasures" Winners Announced
It was challenging to pick the best of the best from among nearly 100 entries. But there's no argument that the melding of raw European Southern Observatory images with amateur astrophotographers' creativity has produced stunning results.
Shining New Light on "Hanny's Voorwerp"
A mysterious, galaxy-size cloud of glowing gas, discovered by a Dutch schoolteacher in 2007, is teaching cosmologists a thing or two about how quasars work.
A Sign of the Times
What's with the sudden realization that the zodiac has 13 constellations and that Sun signs have shifted due to precession? S&T devotees — and astrologers — have known this all along.
The Crab Nebula Flickers!
A recent study shows that the Crab Nebula, long considered a steady source of X-rays, actually fluctuates.
S&T's Cosmic Cruise
Imagine warm ocean breezes, sparking waves, exotic scenery, great speakers — and, at night, constellations you've perhaps never seen before!
March Digital Edition Available
The digital edition of the March 2011 S&T is now available.
Seth Shostak on SETI
Sky & Telescope interviews Seth Shostak, senior astronomer at the SETI Institute, on the hunt for extraterrestrial intelligence.
The Most Distant Galaxy Cluster
Many instruments working together have profiled a baby galaxy group, seen not long after the Big Bang, of the kind that probably evolved into our Milky Way.
A Black Hole “Too Big” For Its Galaxy
A lightweight little dwarf galaxy with no central bulge has a supermassive black hole half as heavy as the Milky Way's. How did that happen?
Thunderstorms That Shoot Antimatter
The Fermi satellite was launched to observe gamma rays coming from the distant universe. It has also found positrons coming from below.
Kepler's Dense, Rock-and-Iron Planet
With just 1.4 times Earth's diameter but 4.6 times Earth's mass, Kepler-10b has the average density of iron.
Great Photos from a Celestial Double-Header
January 4th featured a robust meteor shower and a partial solar eclipse in quick succession. Here's the story of how two lucky astrophotographers captured the moment.
10-Year-Old Girl Spots Supernova
With a click of a computer mouse, Kathryn Gray helped discover an exploding star 240 million light-years away.
Spirit's Quiet Anniversary
The first of NASA's twin rovers reached the Martian surface on January 3, 2004, but it hasn't been heard from in nearly a year.
Daydreaming About January 4th's Solar Eclipse
Lucky skywatchers in Europe, northern Africa, and western Asia will get to see a deep partial eclipse of the Sun on Tuesday.
Eclipses in 2011
It will be a busy year for eclipse-watchers in the Eastern Hemisphere, but North Americans will have to wait until mid-December to see the Moon covered by Earth's shadow.
Tour January's Sky! | December 30th, 2010
The New Year opens with a partial solar eclipse, a great meteor shower, and a canopy of bright stars and planets overhead.
