Leo, the Lion
Leo’s brightest star is blue-white Regulus, one of the brightest stars in the night sky. It is about 79 light-years […]
Leo’s brightest star is blue-white Regulus, one of the brightest stars in the night sky. It is about 79 light-years […]
The Sun was born about 4.6 billion years ago from the gravitational collapse of a vast cloud of gas and
Our Star, the Sun Read More »
This bright ring of light is quite common. It’s related to the same process that creates rainbows: refraction. In this
What causes the bright halo that sometimes surrounds the Moon? Read More »
To begin with, Earth is rotating on its axis at the familiar rate of one revolution per day. For those
How fast is Earth moving through space? Read More »
Of course, the nearest star to Earth is the one we see every day — our dear old Sun. At
What is the nearest star? Read More »