Was the Sagittarius A* black hole ever a star?
Stars with mass more than 150 Solar Masses are believed to be unstable. The radiation pressure from the core would be so high that it would shed the…
What would Jupiter look like to us from Earth if Venus and Jupiter switched spots?
eplace Venus (67 million miles from the sun) with Jupiter, a planet with 390 times the mass of Venus. And roughly 11 times the diameter. Now, you would…
Is the Phaethon asteroid going to make an impact with Earth on December 17th?
Yes it absolutely will, but not this year! Sometime, maybe on December 17th, or thereabouts in some undetermined year in the future it will definitely hit Earth and…
If Jupiter were the same distance away as the Moon, what would we see from Earth?
The moon is 384,400 km or 238,900 miles from Earth and has a diameter of 3,474 km or 2159 miles. We observe the moon as just over 1/2…
Would Apophis end humanity if it hit Earth?
Those who don’t know what Apophis [1] is, It is an asteroid that can potentially do massive damage in the year of 2029. All the major space agencies of the…
If the Universe is supposed to be 13.7 Billion years old, why then has the James Webb telescope discovered a Galaxy that is 32 billion light years away?
A: Patience, young pup! James Webb Space Telescope is not online yet. July 12th is the date when it starts to deliver. You seem to be referring to…
Mars vs. Venus, why do we concentrate on Mars, wouldn’t Venus be the better choice?
Considering the environmental conditions on Venus…under which no human built space probe has lasted more than a few hours, at best, while on the surface of the planet,…
What is the biggest single object in the observable universe?
The biggest single object (not counting galaxies, universe, etc.) ever discovered is S5 0014+81. Prepare to have your mind blown. S5 0014+81 is a quasar. Upon further inspection they found…
Is Titan better than Mars for human colonization?
Titan has some advantages over Mars, that potentially can make Titan a better alternative for human colonization. The Titan advantage: The Mars advantages: Honestly, I see Mars being…
What is the scariest planet in our solar system?
Saturn. (Real image captured by Cassini, 2012) This planet looks beautiful. It looks like a planet you would love to visit someday and see its size up close….