How Big Are Those Killer Asteroids? A Critic Says NASA Doesn’t Know.
A former Microsoft technologist questions NASA’s efforts to identify space rocks and their proximity to Earth.
Highlights
-
Photo
CreditW. Wayt Gibbs/Intellectual Ventures -
Photo 
CreditRobert Moir and Rudolph Tanzi/Massachussets General Hospital and Harvard Medical School Could Alzheimer’s Stem From Infections? It Makes Sense, Experts Say
Provocative new research leads to the hypothesis that infections may produce a fierce reaction that leaves debris in the brain, causing Alzheimer’s.
-
-
Photo 
CreditAngel Valentin for The New York Times Trilobites
Florida Needs a Lionfish King or Queen. It Could Be You.
A king and queen will be crowned. The competition designed to rid Atlantic waters of the beguiling beauties, which have gobbling up native species for at least two decades.
-
Photo 
CreditScott Portelli Trilobites
Squid Are Thriving While Fish Decline
Warming oceans, while detrimental to some fish, may be creating beneficial growing conditions for some cephalopods.
-
-
Photo 
CreditBen Torres for The New York Times Climate Change Activists Either Prod Exxon Mobil or Sell It
Whether to negotiate new policies reflecting climate change or adopt a scorched-earth strategy has divided groups seeking change within the energy company.
-
Photo 
CreditU.S. Army The Hiroshima Mushroom Cloud That Wasn’t
The image, a symbol of a city’s destruction that has been considered the moment a nuclear bomb hit, is actually of smoke from fires that followed.
-
ScienceTake
Photo 
Credit A Tiny Robot That Can Fly and, Amazingly, Rest
The RoboBee, a flying machine that weighs a few thousandths of an ounce, uses an electrostatic patch and a bit of foam to attach itself to a perch.
-
Photo 
CreditKyocera New Solar Plants Generate Floating Green Power
So-called floatovoltaics are attracting international interest as a space-saving, high-efficiency alternative to land-based solar power plants.
-
Trilobites
Photo 
CreditJoe Wasilewski/Associated Press Nile Crocodiles Found Really Far Out of Africa. In Florida.
Four of the animals have been discovered in Florida. So far, there is no indication that they are reproducing.
Trilobites
More in Trilobites »-
Trilobites
Photo 
Credit Mini Microbes With Musical Tastes
The tiny Pyrocystis fusiformis reacted differently to a variety of music and beats.
-
Trilobites
Photo 
CreditESO/M. Kornmesser, via N. Risinger Mega-Tsunamis Wiped Away Shoreline of a Martian Ocean
Planetary scientists report finding the shoreline of an ocean that might have once covered much of Mars’s northern hemisphere.
-
Trilobites
Photo 
CreditLauren Nichols City Bees Stick to a Flower Diet Rather Than Slurp Up Soda
An entomologist investigated whether bees prefer flower nectar or sugary soda.
-
Trilobites
Photo 
CreditJonas Piontek A Place Where Lightning Strikes Almost 300 Days a Year
Locals in the area known as Lake Maracaibo, by the Catatumbo River can expect electrical storms during more than 80 percent of the year.
-
Trilobites
Photo 
CreditLiangbing Hu Wood That Could be Mistaken for Glass
The scientists say they were “very surprised by how transparent it could go.”
