The platypus is threatened by a number of factors. One threat is its becoming the lunch of cats and foxes.
The Planck space telescope analyzed the same patch of sky (within white dots) as BICEP2 in a search for ripples in the fabric of space. Yellow and red patches highlight areas with the most galactic dust, which initially tricked scientists.
The “eyes” in this face are actually galaxies — huge clusters of stars. And the smile is an optical illusion.
In March 2014, scientists claimed to have found the first echoes of the Big Bang — ripples in the very fabric of space. A new analysis shows the experts were mistaken. Dust appears to explain the confusion.
Ancients used to ‘see’ the outline of animals and other well-known things as constellations in the night sky. Now astronomers have done much the same thing. But they’ve spotted a more distant — if totally modern — shape: a smiley face!
A half-century search for samples of Earth’s most abundant mineral has ended. This stuff forms only deep in the rocky layer surrounding our planet’s core. But scientists found bits of it in a meteorite that fell in 1879. And finally, this bridgmanite gets a name.