April 19, 2019, 9:38 a.m. by Michael d'Estries
The private space race to send humans to the ISS and beyond is about to enter a new nail-biting phase.
What's the difference between black rhinos and white rhinos?
April 3, 2019, 12:06 p.m. by Mary Jo DiLonardo
They're actually both gray, after all.
Time-lapse captures bizarre beauty of Norway's floating islands
April 2, 2019, 3:10 p.m. by Michael d'Estries
These unusual masses of soil and spongy plant life support a wide variety of species.
NASA's 'Mars Helicopter' aces tests ahead of historic flight
April 1, 2019, 4:25 p.m. by Michael d'Estries
Autonomous aircraft heralds the beginning of a new era in our exploration of the red planet.
Trees are the not-so-secret weapon in keeping cities cool
April 1, 2019, 8:25 a.m. by Matt Hickman
Canopy coverage of 40% or more can cool a sweltering city street up to 10 degrees.
A massive great white shark named Miss Costa is in Florida for spring break
What's next for SpaceX in its mission to send humans to space?
Extrasolar object may have crashed on Earth in 2014, and it could have carried alien life
A guide to the full moons of 2019
9 of the world's largest dog breeds
13 cool facts about the oddball kakapo