Fossils found at the Sterkfontein Caves in South Africa may be much older than previously thought.
Forests took millions of years to evolve after the first land plants arrived, waiting for precursors to roots and branches to arrive and for CO2 levels to get just right.
The Supreme Court ruled that the EPA can't impose nationwide greenhouse gas emissions reduction policies without express approval from Congress.
Reference Wondering if it’s worth investing in some antioxidants for your skin? Here’s what experts – and science – say about these anti-aging ingredients
An unusual surge in anchovy populations has led to the fish raining down on San Francisco. Here's why.
Soda's effervescence comes from processes that super-saturate the liquid with carbon dioxide, which later escapes from the soft drink as tiny, effervescent bubbles.
Even when there is substantial evidence to the contrary, the allure of conspiracy theories may be too powerful for some to resist.
Of the 13 mass school shootings in the U.S., the three most deadly occurred in the last decade. Data from these attacks helped criminologists build a profile of the gunmen.
Google engineer Blake Lemoine was suspended for sharing transcripts of a conversation with the AI system LaMDA, which he claims is sentient.
Take the best online physics courses right now and start learning from the top schools and thinkers today – from how things work to exploring the universe!