Technically rocks are not sediments, rather sediments are derived from weathered rock material. These sediments may conslidate and form rocks such as sandstones and mudstones, which include shales and siltstones. This variety of rock types is of sedimentary origin. Other… Full Answer
SETI has yet to receive any sort of signal that has been determined as being extraterrestrial in origin. However, the closest thing to this happening was the WOW signal, which was detected by SETI in 1977. It is unlikely this… Full Answer
There is strong evidence that an extraterrestrial object impacted near the Yucatan peninsula. There is also evidence that a boundary layer was formed that is rich in iridium. The most plausible origin of this iridium is an extraterrestrial impact. Below… Full Answer
The term extraterrestrial can be adjective or noun. In adjective case, the term extraterrestrial refer occurring or existing beyond the earth's atmosphere. In noun case, the term extraterrestrial refer being from the beyond the earth's atmosphere.
The oldest rock found on Earth is of extraterrestrial origin, having landed as a meteorite and dating to around 4.56 billion years ago, at the time of the formation of the solar system. For information on the oldest rock of… Full Answer