Radio waves can penetrate interstellar gas and dust without being scattered or absorbed
Radio waves can penetrate interstellar gas and dust without being scattered or absorbed
Radio waves can penetrate interstellar gas and dust without being scattered or absorbed
it is used because it makes life simpler
Metals conduct electricity which makes it great for making wires for circuits, metal is also used in copper tracks for PCBs(Printed Circuit Board).
Stars.Or strange matter.Last year, a report with the first evidence of «Dark Galaxies», entitled "Detection of dark galaxies and circum-galactic filaments fluorescently illuminated by a quasar at z=2.4", using the VLT in Chile, was published in the Monthly Notices of the Royal Astronomical Society.Scientists consider now that «Dark Galaxies» may had played a major role in stellar galaxies formation during the early Universe expansion, feeding neighboring galaxies with precious gas required to give birth to the first stars.
Radio waves can penetrate interstellar gas and dust without being scattered or absorbed
they are magnetic
Well, they help characterize objects, don't they?
Edge-on galaxies are galaxies that are viewed from Earth at an angle where their disk appears edge-on, rather than face-on. This orientation makes it difficult to discern spiral arms or other details in the galaxy's structure. These galaxies are useful for studying the distribution of stars and dust within them.
The characteristic of the uranium-238 isotope that makes it useful for dating rocks is its long half-life of about 4.5 billion years. This allows for accurate dating of rocks that are billions of years old.
Radio waves can penetrate interstellar gas and dust without being scattered or absorbed
The term "weather" makes more sense for planets, than for entire galaxies.
a galaxy is a group of stars.
Gravity and inertia, mainly.
The property of radioactive decay is what makes radioactive elements useful for determining absolute age. By measuring the amount of parent and daughter isotopes in a sample, scientists can calculate the age of the material based on the known half-life of the radioactive element.
Why is any car useful? Your question makes no sense.
It makes you clean and it makes you smell good.