Not exact matches
While all the
planets orbiting the sun closer
than this tilted blue giant have been known to humans since
ancient times, Uranus wasn't spotted until William Herschel saw it in 1781.
[T. L. Campante et al, An
Ancient Extrasolar System with Five Sub-Earth-size
Planets] Kepler 444 and its planets formed some 11.2 billion years ago, when the universe was less than one fifth its curre
Planets] Kepler 444 and its
planets formed some 11.2 billion years ago, when the universe was less than one fifth its curre
planets formed some 11.2 billion years ago, when the universe was less
than one fifth its current age.
The scientists found ripple patterns in
ancient rocks that are slightly smaller
than the ones found across the
planet today.
Those findings suggest the rings are probably the remnants of at least one moon, rather
than ancient remains of the stuff that formed the
planet.
For the first time, NASA is finally venturing out, visiting one of the oldest objects in the solar system — older
than the
planets themselves — and returning home with a piece of that
ancient history.
A new study led by Northern Illinois University geography professor Wei Luo calculates the amount of water needed to carve the
ancient network of valleys on Mars and concludes the Red
Planet's surface was once much more watery
than previously thought.
The oldest rocks so far identified on Earth are one - half billion years younger
than the
planet itself, so geologists have relied on certain crystals as micro-messengers from
ancient times.
Once the heartland of the vast Maya civilization, Belize has more
ancient Maya sites
than anywhere else on the
planet.
All this plus more
ancient Maya cities
than anywhere else on the
planet, and it's easy to see why Belize is such a popular travel destination.
Of course there is more to Jack
than meets the eye and he wants to open an
ancient vault that will allow him to more or less destroy everything and everyone or at least control the
planet.
On this
planet, the atmosphere is about 100 times thinner
than Earth's — a very different situation from the
ancient past, when geological evidence shows that water used to flow on the surface more
than 4.5 billion years ago.
In December 1997, at an International Climate Summit in the
ancient Japanese capital of Kyoto, more
than 100 nations agreed to reduce the emissions of heat - trapping gases that can warm the
planet.