Which planet is home to the Universe's biggest volcano?
A.Mars
B.Earth
C.Venus
D.Mercury
Arrange the Phases of the moon in the order
Waxing Crescent
Half moon
Waxing Gibbous
Full moon
New moon
Orion's brightest star is
A.Moon
B.Sirrius
C.Pole star
D.Sirius
One Astronomical unit is equal _______
A.14.96 X 10^8 km
B.1.496 X 10^8 km
C.1496 X 10^8 km
Which comet will emerge after approximately 76 years since 1986?
A.Haaley's Comet
B.Hoba 's Comet
C.Halley's Comet
D.Hobba 's Comet