Stunning star trails
Expedition 31 Flight Engineer Don Pettit relayed some information about photographic techniques used to achieve the images: “My star trail images are made by taking a time exposure of about 10 to 15 minutes. However, with modern digital cameras, 30 seconds is about the longest exposure possible, due to electronic detector noise effectively snowing out the image. To achieve the longer exposures I do what many amateur astronomers do. I take multiple 30-second exposures, then ‘stack’ them using imaging software, thus producing the longer exposure.”
- Wed, Jun 13, 2012
Photo Galleries By Category

Massive tornado in Oklahoma
91 photos

Milwaukee Pug Fest
6 photos

Cannes Film Festival
20 photos

Oddball pics from around the world
40 photos

Photos of the Day
44 photos

MoMA's 'Rain Room'
9 photos

Chelsea Flower Show 2013
17 photos

Deadly bombing in Iraq
20 photos

Best night-sky photos of 2013
10 photos

Death-defying daredevils
41 photos

Weird world records
43 photos

2013 NatGeo Traveler Photo Contest: Top animal …
13 photos

Alaska's volcanic eruptions
9 photos

"Madness" no more: How definitions …
8 photos

Snapshots of the Week
50 photos

Soldiers' portraits before, during and …
15 photos
Related Search Results
- New Discovery: One Good Thing Coal Does for Nature
Before we get started, a warning. What you’re about to read is going to sound at first like something cooked up by the same folks who gave us the oxymoronic (and otherwise moronic) advertising slogan “Clean Coal.” It will sound like a fantasy story even a Fox News anchor would not dare announce: “Coal—The Biodiversity Fuel.”
- Boyfriend espaces out window as husband confronts cheating wife [VIDEO]
As part of perhaps the most spectacular walk-of-shame ever, an underwear-clad lover escaped from a third floor bedroom as the returning husband confronted his cheating wife on a balcony.
- Kids rescued from rubble at Okla. elementary
MOORE, Okla. (AP) — Several children have been pulled out of the rubble alive at a school in an Oklahoma City suburb.
- BREAKING: Subway Just as Unhealthy as McDonald’s!
If you watched the London Olympics last summer, you saw a parade of top athletes touting the nutritional qualities of their favorite eatery: Subway. Watching Apolo Ohno or Robert Griffin III bite into a veggie footlong with avocado or hearing that Subway is “the official training restaurant of athletes everywhere,” you might get the idea that the food served at the chain isn’t that bad for you—that it’s even healthy.
- What We Know About the Record Breaking Powerball Jackpot's Mystery Winner
The frenzy for last minute tickets is over. The numbers have been picked out. Somewhere, a single person is $590.5 million richer. Last night's record Powerball jackpot has a winner but we have no idea who that person is yet.
- See the Face of Suspected Burglar After Homeowners Fought Back
It involved a stun gun.
- Fox News Reporter James Rosen May Face Criminal Charges for Reporting on the CIA
The government will use any and all information at its disposal to find journalist sources, as shown in The Washington Post's report this morning on a Department of Justice investigation into Fox News chief correspondent James Rosen, who may face criminal charges for reporting government secrets.
- LIVE UPDATES: Massive tornado tears through Oklahoma City area
A devastating storm plows through Oklahoma, leaving a wide trail of destruction
Follow Yahoo! News

Join our circle on Google Plus
Become a fan of our G+ page for the most intriguing stories of the day. More »
plus.google.com

Follow @ Yahoo! News on Twitter
The official account of Yahoo! News. 100% feed-free tweets by news fans for news fans! More »
twitter.com
