nbcnews.com / .nbcnews-com-science

The Las Playas Intaglio carving of a huge fish is at least 2,000 years older than the first Egyptian pyramid, according to researchers' estimations.

The future of national climate assessments remains murky after the Trump administration dismissed hundreds of scientists.

The move would overturn a 2024 Biden administration rule requiring power plants to control planet-warming pollution.

The storm lashed Hawaii's western islands with heavy rain, widespread flooding and strong winds, leaving most Kauai residents without power. Now extensive recovery efforts begin.

The transplant led to "sustained dialysis independence" for nearly nine months before he received a human kidney earlier this year, according to The Lancet.

The intense storm activity is what climate scientists expect for El Niño, especially because this year's event is likely to become the strongest on record.

The Ocean Race Atlantic is a nearly 3,700-mile race from New York to France where world class athletes sail at high speeds to not only win, but help save the planet. Reporting for Saturday TODAY, NBC's Angie Lassman heads to New York Harbor to meet . ...

Houses that survive fires can be contaminated with toxins from smoke like lead and asbestos. But there have been no consistent rules for testing or remediation.

Skyrocketing demand and a shrinking food source are putting pressure on supplies of the tiny, nutrient-packed fish.