June 22, 2018, 9:34 a.m. by Michael d'Estries
Astronomer Juan Carlos Muñoz-Mateos' test of a crystal ball as an astrophotography lens results in some celestial magic.
June 19, 2018, 9:27 a.m. by Mary Jo DiLonardo
The population of this iconic big cat grew by 20 percent over the last 8 years.
June 14, 2018, 1:50 p.m. by Noel Kirkpatrick
Antarctica ice loss was only contributing 0.2 millimeters per year to sea level rise, but that number has jumped to 0.6 millimeters since 2012.
June 12, 2018, 12:29 p.m. by Mary Jo DiLonardo
A startling number of the oldest and largest baobab trees have crumbled.
June 8, 2018, 12:43 p.m. by Mary Jo DiLonardo
The lizard waits until the last moment in an attack to reveal a surprising detail about its tongue.
June 5, 2018, 12:14 p.m. by Noel Kirkpatrick
The mountain gorilla population is rebounding in the Virunga mountain area.
June 18, 2018, 2:07 p.m. by Jacqueline Gulledge
The Nature Conservancy announces the winners of its annual photography competition.
June 14, 2018, 2:39 p.m. by Jacqueline Gulledge
Tsepdro is a sacred art form traditionally made during Tibetan New Year.
June 7, 2018, 2:42 p.m. by Jacqueline Gulledge
If you're looking for summer travel ideas, this list is a good starting point.
June 6, 2018, 9:35 a.m. by Noel Kirkpatrick
'On Eternal Patrol' is a collection of 65 Eternal Reef Balls that honor the memory the 65 American submarines lost since 1900 and their crews.
June 1, 2018, 12:06 p.m. by Jacqueline Gulledge
Hawaii's Kilauea volcano erupted in early May, sending plumes of ash and smoke into the sky and lava into nearby neighborhoods.
June 1, 2018, 10:45 a.m. by Catie Leary
Everyone's favorite celestial outcast may not be an official planet, but that doesn't mean we're any less fascinated by it.
June 20, 2018, 4:30 p.m. by Tom Oder
Here's our list of royal gardens to consider adding to your Best-of-Britain tourist itinerary.
June 18, 2018, 9:28 a.m. by Josh Lew
From an underground funicular to ice buses, there are unique ways around the world to get from one end of a city to another.
June 6, 2018, 10:03 a.m. by Mary Jo DiLonardo
You've heard of Ebola and now everyone knows Zika, but there are many dangerous viruses that have yet to make horrific headlines.
May 24, 2018, 9:32 a.m. by Josh Lew
Some trails are more attractive for solo treks because of their blend of solitude and safety.
May 18, 2018, 10:48 a.m. by Katherine Butler
Thanks to Earth-observing satellites of NASA, we can see epic eruptions as never before. Here are nine images of volcanoes as seen from space.
May 17, 2018, 6:12 p.m. by Josh Lew
Whether you think that royal weddings are frivolous or fascinating, they're more common than you think.