Compare the orbital motion of stars in the Galactic disk with those in the halo

What will be an ideal response?


Stars in the disk orbit the galactic center uniformly, with the same circular motion in roughly the same orbital plane. The orbits of halo stars are randomly oriented, may be perpendicular to, and pass through the disk, and are not all in one direction.

Physics & Space Science

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Some antiparticles are identical to the particles they correspond to

Indicate whether the statement is true or false

Physics & Space Science

What are the two most important intrinsic properties used to classify stars?

A) Mass and age B) Luminosity and surface temperature C) Distance and luminosity D) Distance and surface temperature E) Distance and color

Physics & Space Science

Io's volcanoes contribute material to a(n) ________ around the planet Jupiter's equator

Fill in the blank(s) with correct word

Physics & Space Science

Even if Martian meteorites contained life, the life could not possibly have survived the journey from Mars to Earth

Indicate whether the statement is true or false

Physics & Space Science