Photo: Tulips and tourists greet the vernal equinox in D.C.
March 20, 2012, 11:42 a.m. by Catie Leary
Unseasonably warm weather has caused Washington's spring flowers and famous cherry blossoms to bloom days before the official end of winter.
Photos: Celebrating spring's arrival with a splash of color
March 19, 2012, 11:32 a.m. by Catie Leary
Revelers covered in powdered dye celebrate Holi, also known as the Festival of Colors, on a cruise ship in Manhattan, N.Y.
Photos: Mermaids and porcupines win big at ice art competition
March 15, 2012, 11:02 a.m. by Catie Leary
See the winning sculptures for this year's World Ice Art Championships, a month-long celebration of all things ice held in Fairbanks, Alaska.
Photos: Loggerhead sea turtles get new lease on life
March 14, 2012, 11:22 a.m. by Catie Leary
A pair of endangered loggerhead sea turtles are released back to the ocean after undergoing two months of rehabilitation at Miami's Seaquarium.
Photos: A space traveler's view of aurora australis and Eye of Africa
March 13, 2012, 11:53 a.m. by Catie Leary
Astronaut André Kuipers snapped these amazing images of the aurora australis and the mysterious Eye of Africa from the International Space Station.
Photo: Jumping hurdles, breaking records at indoor championships
March 10, 2012, 12:04 p.m. by Catie Leary
Competitors race in the women's 60-meter hurdles at the 2012 IAAF World Indoor Athletics Championships at the Atakoy Athletics Arena in Istanbul.
Photo: All eyes on British swimmers as they vie for Olympic berths
March 9, 2012, 11:50 a.m. by Catie Leary
The outcome of the British Gas Swimming Championships will determine who will represent Great Britain on the Olympic and Paralympic swim teams this summer.
Photo: Scientists closing in on the evasive Higgs boson particle
March 7, 2012, 12 p.m. by Catie Leary
Recent studies by two teams of U.S. physicists reinforces the encouraging findings announced by CERN scientists in December.
Near-threatened reef sharks strike a pose for the camera
March 6, 2012, 11:02 a.m. by Catie Leary
A school of reef sharks glide through the crystal clear water of the Bahamas.