Asteroid in a sentence as a noun

"Until an asteroid,"By far the best byline I have ever read.

An asteroid the size of 2012-DA14 would hit with a force of nearly 3 megatons.

A few other comet/asteroid missions I've lost track of, plus8.

On one hand a 500-ton asteroid is way too small to make a difference if the smelted iron and nickel could be safely landed on Earth.

Even at SpaceX's prices, you're talking ~$1000/kg for LEO insertion;2. You need to get equipment to the asteroid;3. You need to get to the asteroid.

Chariklo is the largest of the class of asteroids orbiting the sun between Saturn and Uranus known as Centaurs.

It has taken more devastating asteroid hits in its lifetime than you've had hot dinners, and lo, it still orbits merrily.

The problem is the delta-V required to match velocities;4. You either need to bring back the entire asteroid, which would require a massive amount of delta-V, or you need to mine the asteroid, which would take a massive amount of equipment;5.

Asteroid in a sentence as an adjective

The criticism does not seem to be against asteroid mining in general, but against the idea that diamonds in space would make it more viable.

Okay, putting on my astronomer hat:The asteroid was the root cause of the Cretaceous–Paleogene extinction event.

I'm no scientist, but I do think it's interesting that the theory of a massive asteroid destroying the dinosaurs arose in the age of nuclear weapons.

They do it by stripping asteroid belts of resources, holding territory where they can conduct R&D, and build every bullet you expend, every ship you pilot.

This provides a plausible mechanism for their synthesis in the asteroid parent bodies, and supports the notion that they are extraterrestrial," says Callahan.

Even the largest asteroids can be easily excavated right down to the core, and many of them contain a wide abundance of many metals, basically everything from Lithium to Copper to Nickel to Platinum or Iridium.

The key is to make sure that we invest in cutting edge research that can take us to the next level - so even as we continue work with the international space station, we are focused on a potential mission to a asteroid as a prelude to a manned Mars flight.

Asteroid definitions

noun

any of numerous small celestial bodies composed of rock and metal that move around the sun (mainly between the orbits of Mars and Jupiter)

adjective

shaped like a star

See also: star-shaped