Notebook
- Astronomy
Clues left at a galactic hit-and-run
Scientists may have discovered a dwarf galaxy that triggered a “galaxy quake” when it buzzed by the Milky Way a few hundred million years ago.
- Paleontology
Fossils provide link in dino crest evolution
Fossils from a newly identified duck-billed dinosaur in Montana could explain how their descendants developed flamboyant nose crests.
- Earth
Succession of satellites keep eye on Earth
50 years after plans were laid for the first Earth-observing spacecraft, the youngest Landsat satellites are still flying and imaging the planet’s surface.
- Animals
The fine art of hunting microsnails
Flotation, tact and limestone all prove vital to the quest for microsnails.
- Animals
The mites living on your face probably run in your family
Demodex folliculorum mites, which live on human skin, have probably evolved with their hosts over time.
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- Health & Medicine
50 years ago, a promising agent pulled
DMSO was promised to cure everything from headache to the common cold. But human testing stopped in 1965.
- Animals
When tarantulas grow blue hair
Azure coloring is surprisingly common in the spiders, though they themselves are colorblind.
- Physics
Aircraft industry could take tips from penguins
Tiny grooves and an oily sheath prevent water droplets from freezing on the feathers of some penguins.
- Astronomy
This white dwarf is hotter than the rest
A new record holder for hottest white dwarf sizzles at about 250,000˚ Celsius.
- Health & Medicine
Cow bites and spacecraft injuries enliven new medical diagnostic codes
The 10th edition of International Classification of Diseases went into effect in 2015, and it included some interesting additions.
- Climate
Report card shows which states are best prepared for climate change
A preparedness report card shows that some states aren’t ready for the extreme heat, droughts, wildfires and flooding that may come with climate change.
