A | B |
BLUE SHIFT | caused my stars moving toward us |
ELLIPSE | oval shape of a planet's orbit around Sun |
FOCI | 2 dots inside the ellipse (sun is at one of them) |
BIG BANG THEORY | universe started in giant explosion |
ECCENTRICITY | numerical value for how oval-shaped an ellipse is |
ASTEROIDS | orbit the sun between Mars and Jupiter |
METEOR | a "shooting star" |
COMET | orbits Sun in very elliptical orbit ("dirty snowball") |
RED SHIFT | caused by galaxies moving away from us |
FUSION | type of nuclear reaction happening on Sun |