There are no known and proven alien spacecraft crashes in the last 20 years. Call them "alien spacecraft" because "UFO" just means "something seen in the sky that you don't know what it was".
There are also no known and proven alien spacecraft crashes prior to 20 years ago.
In fact, so far, we are the only known form of intelligent life in the universe. Somebody has to be first and it is beginning to look as if it is us.
About 20.
== == There have been so many crashes in the last 100 years so the speed limit has changed to accomodate this and reduce the crashes on British roads
The most recent ice age has lasted for 2.6 million years, not hundreds.Glaciations within the ice age last for many thousands of years and are separated by interglacial periods, (warm), also lasting for thousands of years. ...Solar radiation was reflected by the ice.The most recent ice age has lasted for 2.6 million years, not hundreds.Glaciations within the ice age last for many thousands of years and are separated by interglacial periods, (warm), also lasting for thousands of years.
unicorns
The 10 hottest years ever recorded occurred within the last two decades, with the most recent years being in the past few years.
A DUI conviction within the last five years, multiple DUI conviction with the most recent within the last seven years (ten for some insurance companies), or more than three points accrued on your license within the last three years will typically be enough that insurance rates will skyrocket so high that no company is willing to pay them in order to hire you on.
A DUI conviction within the last five years, multiple DUI conviction with the most recent within the last seven years (ten for some insurance companies), or more than three points accrued on your license within the last three years will typically be enough that insurance rates will skyrocket so high that no company is willing to pay them in order to hire you on.
In recent years.
there as 61 helicopter crashes
The last ice age, known as the Quaternary Glaciation, began around 2.6 million years ago and lasted until about 11,700 years ago. The most recent glacial period within this ice age is commonly referred to as the Last Glacial Maximum, which occurred about 20,000 years ago.
Things that have changed recently, or within a short amount of time. Not nesaccerily short, but are changed within the last year or so.
In the last 400 years (since 1610) there have been 97 leap years. The most recent was 2008.