Travelers In The Night14 Jan 2025

319E-338-Psyche Bound

When the material came together to form our home planet, gravity was strong enough to pull the heavy materials like iron to the center, giving our planet an iron core. The vast majority of the hundreds of thousands of known asteroids and comets orbiting our Sun are made of mixtures of rocks and ices of various substances. They do not have enough gravity to cause heavy materials to move to their centers. From scientific measurements the asteroid Psyche appears to be composed almost entirely of iron, nickel, and possibly other valuable metals. Perhaps the Massachusetts sized, 130 mile diameter, asteroid Psyche is the core of a Mars sized planet whose outer layers were blown away by collisions early in the history of the solar system. Although NASA has no plans to bring back material for earthlings to use, space mining enthusiasts are interested in Psyche since the metal in this asteroid may be worth 10,000 quadrillion dollars on today's market. The Psyche spacecraft is scheduled for launch in 2023. It will get a boost in speed from the Earth's gravity in 2024, fly by Mars in 2025, arrive at the asteroid in 2030, and then orbit this strange world for at least 6 months taking scientific data. Since we can not visit our home planet's core a trip to Psyche will enable us to explore the unknown nature of what is below our feet and provide clues about the exotic mixtures of metals and minerals which may be hiding there.

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Episoder(1000)

404E-445-Not So Secret

A partnership of humans and computers will help to minimize the damage when asteroid hunters find a space rock with our number on it.

1 Sep 2min

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403E-444-Near Comets

Although no comet nucleus impact on the Earth has been conclusively identified, there is some evidence that suggests the 1908 Tunguska event in Russia, which knocked down trees over a 770 square mile ...

25 Aug 2min

913-Moon Impact

Bill Gray is an astronomer who specializes in tracking objects in space which come near the Earth. In addition to natural objects like asteroids and comets Bill also tracks rocket boosters and space j...

21 Aug 2min

402E-443-Unsung Heroes

In 2017 observers in 50 countries at 440 different observatories made nearly 19 million observations of asteroids and comets which enable scientists to calculate where about 800,000 objects will be in...

18 Aug 2min

912-Boston Bolide

Recently on a Saturday afternoon a loud double booming sound startled residents of Massachusetts and Rhode Island as a large bolide meteor exploded high above. This type of space rock is a message fr...

14 Aug 2min

401E-442-Brian's Debut

During the only 3 clears hours of his first night solo as an asteroid hunter, my new Catalina Sky Survey teammate Brian Africano discovered two new Earth approaching asteroids with our Schmidt Telesco...

11 Aug 2min

911-Comet Brightness Explosion

Comet 220P/McNaught orbits the Sun once every 5.5 years on a path which is between Mars and Jupiter. At that extreme distance, more than 1.5 times the Earth’s distance from the Sun, it still receives ...

7 Aug 2min