Earth
- Earth
Plate tectonics got an early start
The chemistry of minerals preserved in Australian rocks suggests tectonic activity for Earth’s earliest eon.
By Sid Perkins - Earth
Antidepressants make for sad fish
Fish may suffer substantially from even brief encounters with antidepressants, which wastewater releases into river water.
By Janet Raloff - Paleontology
Bacteria may play big role in forming fossils
Bacteria can build a biofilm that preserves a tissue's structure.
By Sid Perkins - Humans
Is Your Fish Oil Polluted?
Clues to gauging the likely purity of fish-oil capsules.
By Janet Raloff - Humans
When Not to Flush
Toilets are not where we should be disposing of unwanted medicines.
By Janet Raloff - Earth
Antidepressants Aren’t for Fish
Antidepressants can play potentially dangerous mind games with fish.
By Janet Raloff - Humans
What an Acid Bath!
One fallout of space shuttle launches can be a transient change in water pH.
By Janet Raloff - Earth
It’s Night: Why’s It So Light?
We're wasting scads of energy while much of the world sleeps.
By Janet Raloff - Earth
Subglacial lakes flood, glaciers speed up
Floods that occasionally surge from immense lakes trapped beneath the Antarctic ice sheet can significantly affect the flow rate of overlying glaciers, a new study shows.
By Sid Perkins - Life
Supreme Court lifts restriction on Navy sonar testing
Justices overturn restrictions that require Navy to stop using sonar when marine mammals are within 2,200 yards of vessels.
- Ecosystems
Costs of Choked-Up Waters
Scientists tally the economic toll of fertilizing pollutants on water quality.
By Janet Raloff - Earth
Minerals evolved along with life
Turns out, the variety and number of minerals in the solar system and on Earth have increased through time, and some minerals exist because Earth has life.
By Sid Perkins