Life cycle of stars
How are stars formed
A star is born when atoms of light elements are squeezed under enough pressure for their nuclei to undergo fusion
what are black holes
An immense gravity that nothing can escape from
can fossils be found in metamorphic rocks
Fossils are not usually found in either igneous or metamorphic rocks.
what are brown stars
A brown dwarf star is a sub-stellar object whose mass ranges between that of gas giant planets and small stars.
How old is the earth
4.5 billion years old
How hot can stars get
How does a black hole get bigger
By sucking up A whole lot of star's and gas and dust
Are fossils rocks
They are rocks. A fossil can preserve an entire organism or just part of one. Bones, shells, feathers, and leaves can all become fossils
Are brown stars massive
In fact, most astronomers would classify any object with between 15 times the mass of Jupiter and 75 times the mass of Jupiter to be a brown dwarf.
Can the earth be older then scientist are saying
Yes! Life on our planet could be at least one billion years older than previously thought, according to new geological research from the University of Washington.
How long do blue stars live
A middle-sized star like our might last for 12 billion years,
What are black hole's made up of
Matter
Are fossils made up of different rocks
here are three main types of rock: igneous rock, metamorphic rock, and sedimentary rock. Almost all fossils are preserved in sedimentary rock.
How hot is a brown star
these new findings suggest the coldest brown dwarfs are between about 260 and 350 degrees Fahrenheit (125 and 175 degrees Celsius), with masses five to 20 times greater than the size of Jupiter.
Earth
In undisturbed horizontal layers of sedimentary rock, the oldest rocks are found at the bottom. Each higher layer is younger than the layer(s) below it.
can a supernova turn into a black hole
If the star is massive enough it can collapse directly to form a black hole without a supernova explosion in less than half a second.
How do black hole's form
black holes are made when the center of a very big star falls in upon itself, or collapses.
can fossils decompose
how is a brown star formed
Brown dwarfs start out just like their main-sequence siblings. A cloud of dust and gas collapses, gravity piling the components in tightly and forming a young protostar at its center.
Rocks
the number of years that have passed since the rock was formed, such as, "this basalt layer is 1000 years old +/- 20 years".
can lowest-mass main-sequence stars become giants
Why can't the lowest-mass stars become giants? They are fully convective and never develop a hydrogen shell fusion zone. ... They never become giants. Helium fusion does not occur in a red dwarf.
How do black hole's explode
with the most likely endpoint being the dissolution of the black hole in a violent burst of gamma rays.
How do fossils form
For them to be fossilized, they have to be buried and leave an imprint before they decompose. Animals without skeletons are seldom fossilized, because they decompose so quickly. Animals with hard skeletons are much easier to fossilize.
can a brown star explode
Old stufff
Age of a rock compared to the ages of other rocks, such as "this rock is older than the rest in the area