A communications satellite scheduled for a launch to space on 15 April will have to wait. But, what happened?
A tiny microbe may have been the cause of the greatest extinction in the history of the world. Here's what happened.
Zebra stripes have puzzled biologists since the days of Darwin and Wallace. Now, we may know why they developed.
Global warming and man-made climate change have been acknowledged by a major oil company for the first time. So what does Exxon Mobil plan to do about it?
The Alvin submersible has returned to the Gulf of Mexico to examine how the region is recovering from the BP oil spill four years ago.
A powerful solar flare struck the Earth on 29 March and three more are on the way. Here's what happened and what you can expect from the coming space storm.
Black holes in the hearts of galaxies have been large since the early days of stellar families. So, why did the answer to the big mystery of development come from the smallest galaxies?
An international court has ordered the end to whaling by Japan in the Southern Ocean. So, why are the marine mammals still not safe?
A tomb which once contained a pyramid, has been found in Egypt. What do we know - or not - about those buried there?
A dead panther has been found in a Florida wildlife preserve and fewer than 160 of the animals live in the wild. So, why are increasing deaths from automobiles good news for the wild cats?
Windowpane oysters have tough transparent shells. New research shows why they are so tough and the implications of the discovery are becoming clear.
Human hearts become more of a sphere in space. What does this mean for a future human mission to Mars?
The Rosetta spacecraft and Philae lander are due for the first meeting ever between the human race and a comet. New photos show the target is in sight.
The Soyuz spacecraft docked at the International Space Station after a two-day delay. Astronauts are getting along fine, despite tensions between the United States and Russia.
Discovery of the pink dwarf planet 2012 VP113 is raising more questions than it is answering. A pink dwarf planet, recently discovered near the edge of our solar system, is already generating mystery just days after its discovery.
A prototype Mars rover is tested at the Mars Yard, a simulator resembling a giant sand box. The Mars Yard was the testing ground for a new martian buggy, a prototype of a planned rover, due for launch to the red planet in 2018.
A lunar eclipse tetrad is due to take place, treating viewer across North America to four lunar eclipses in a little over a year.
A secret spy plane, operated by the U.S. Air Force, is flying high above Earth. And it's been doing it for a record amount of time. So what is it doing up there?
Aesop's Fables featured The Crow and the Pitcher. Now, investigators have put that story to the test in the real world. What they found is amazing.
A simulator meant to replicate conditions on the red planet will be built in an unknown location. Here's how the facility will test the equipment - and people - heading toward Mars.
The Hubble Space Telescope has seen two tails sprouting from Comet Siding Spring, due for a close approach with Mars.
Tawny crazy ants are on the way to Houston. They may wipe out stinging fire ants there. Here's why the raspberry ant is even less welcome than that unpopular insect.
Arroyo toads are coming back from extinction. But, has the species made enough improvement to be reclassified? The U.S. Fish and Wildlife Service thinks so. Others are not so sure.
Dwarf planet VP113 is the newest member of our planetary system known to humans. So, how does it compare to other dwarf planets?
Genetic code has been created step-by-step for the first time. But why could yeast change the future of medicine and energy?
Ban Ki-moon toured Greenland, where the United Nations chief says he saw evidence of global warming first hand.
A double ring system around the asteroid Chariklo is the first system of its type ever observed by astronomers. Here is how astronomers accidentally discovered the rings.
A frozen pink world has been found, orbiting far beyond the orbit of Pluto. Here's what we know about it so far.
Woolly mammoths went extinct 10,000 years ago. The last of the animals may have suffered from skeletal deformities, which could have doomed the species.
Barnyard animals are cute, but are not known for their intelligence. It turns out, goats are smarter than most people think!