Suppose that the star Betelgeuse (the upper left shoulder of Orion) were to supernova tomorrow (as seen here on Earth). What would it look like to the naked eye?
A) Betelgeuse would suddenly appear to grow larger in size, soon reaching the size of the full Moon. It would also be about as bright as the full Moon.
B) Betelgeuse would remain a dot of light, but would suddenly become so bright that, for a few weeks, we'd be able to see this dot in the daytime.
C) We'd see a cloud of gas expanding away from the position where Betelgeuse used to be. Over a period of a few weeks, this cloud would fill our entire sky.
D) Because the supernova destroys the star, Betelgeuse would suddenly disappear from view.
Question 2
The greatest distance above or below the ecliptic the Moon can move is
A) 5.2 degrees. B) 23.5 degrees. C) 27.3 degrees. D) 29.5 degrees. E) 30 degrees.
A star-forming region in the Large Magellanic Cloud.
Glioma. (a) Illustration of a large glioma (colored area) within the left cerebral hemisphere in a s
Left coronary artery (only seen if auricle is open)
The Structure of an Old High-Mass Star
The Upper Cave at Zhoukoudian yields ages of about 25,000 years for Homo sapiens.
Close-up of a flat-disc amplifier (left) and a bell amplifier (right)