A mission that began a decade ago reaches its destination.
Software shows how pattern recognition could thwart nest invaders.
The West’s fire regime is changing.
How carbon dioxide's rise was discovered.
Rare, ancient remains reveal ancestral ties.
Time may be running out for the Great Red Spot.
Birds in contaminated zone are healthier than expected.
Experts examine relationships between flu strains for answers.
A vast grid of surface detectors is revealing Earth’s hidden insides.
Linking habitats helps seeds spread.