4561–4580 of 6,712 results
MIThenge

Celestial News & Events

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.

Cosmology

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.

People, Places, and Events

R. Jay GaBany Wins Chambliss Award

California astrophotographer R. Jay GaBany wins the 2011 award for cutting-edge amateur research.

Astronomy and Society

"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.

Cosmology

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.

Celestial News & Events

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.

Space Missions

The Crab Nebula Flickers!

A recent study shows that the Crab Nebula, long considered a steady source of X-rays, actually fluctuates.

Cosmic Cruise's Zuiderdarm

Astronomy & Observing News

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!

Astronomy & Observing News

March Digital Edition Available

The digital edition of the March 2011 S&T is now available.

Astronomy & Observing News

Seth Shostak on SETI

Sky & Telescope interviews Seth Shostak, senior astronomer at the SETI Institute, on the hunt for extraterrestrial intelligence.

Cosmology

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.

Galaxies

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?

Solar System

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.

Exoplanets

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.

Celestial News & Events

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.

People, Places, and Events

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.

Martian rover

Space Missions

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.

Celestial News & Events

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.

Celestial News & Events

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.

iPod

Celestial News & Events

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.