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The invention of the wheel.
The last fossil on earth has not yet been discovered. There are probably many, many times more left than have been found so far.
Astronomers have only recently discovered in the last ten years or so that Mercury does have a very thin atmosphere. Probably from gases leaking out from the planets interior.
Neptune. (Note: Pluto was discovered later, but currently it is no longer recognized as a planet.)
We can't even guess. Starting eight years ago and up until last year, we had discovered a handful of exo-planets - planets that orbit a star other than the Earth. A new research satellite was launched last year, and we have since discovered 500 or more exo-planets; and good indications of a thousand more. It used to be that astronomers thought that planetary systems would probably be rare. But we're discovering planets - MANY planets - around nearly every star we study, and in numbers that were undreamed of. In fact, it's possible that we will find that a majority of stars will have planets. If half of the stars have planets, and they average 2 planets per star, then there might be one TRILLION planets in the Milky Way galaxy alone! This number might be way off - but we're not sure whether this is more likely to be much too high, or far too low!
It is Unknown
Samoa has not been in any war in the last decade.
There are 8 planets in the solar system: Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune However, there have been over 1000 planets discovered in the last 20 years orbiting other stars.
Neptune, Pluto has lost its status as a planet. Since then, many dwarf planets have been discovered beyond Pluto.
The last two planets to be discovered are Uranus (discovered by William Herschel on March 13th 1781) and Neptune (discovered independently by Urbain Le Verrier, John Couch Adams and Johann Galle on September 23rd 1846)
The invention of the wheel.
We hardly know yet. Planets other than those in our own solar system (called "extrasolar" planets or "exoplanets") have only been discovered in the last ten years or so. About a thousand are known, but astronomers feel there must be many, many more.
The last confirmed discovery of a chemical element was in 2000. The chemical is Livermorium, which is prepared by bombardment of calcium with calcium.
The last confirmed discovery of a chemical element was in 2000. The chemical is Livermorium, which is prepared by bombardment of calcium with calcium.
Last? We are not finished yet! There are some places in Indonesia, Antarctica, the Himalayas and the Amazon that have not yet been discovered. Our ocean floor remains mainly unexplored. We must still colonise the Moon and planets. The last place to be colonised was the South Pacific so islands like Raratonga in the country Cook Islands was discovered in 1813. The Torres Islands in northern Vanuatu were the last islands discovered by Europeans in the Pacific. The newest nation on Earth is "East Timor" 2002.
Hardly any, just a few inches in the last decade.
This decade is called THE TEENS The last decade was called THE TENS