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Asteroid 2000 QW7

September 14, 2019 by admin Leave a Comment

Watch an Asteroid Fly by Earth Today in a Live Webcast from …
https://www.space.com › asteroid-flyby-september-2019-slooh-webcast

An asteroid known as 2000 QW7 is expected to pass by Earth closely, but safely, at 3.3 million miles (5.3 million kilometers) from Earth

NASA: Two asteroids will fly safely by Earth this week, so just …
https://www.cnet.com › news › nasa-two-asteroids-will-fly-safely-by-earth-…

NASA used this image of the far-off Vesta asteroid to illustrate its release on this week’s asteroids. NASA.

NASA news: NASA orbit video shows monster asteroid set to …
https://www.express.co.uk › News › Science

The Asteroid, called 2000 QW7, was first discovered by NASA on August 8, 2000.

Large Asteroid 2000 QW7 to pass Earth – Comet Watch
www.cometwatch.co.uk › large-asteroid-2000-qw7-to-pass-earth

On Saturday 14 September, 2019 a large asteroid (designated asteroid 467317 2000 QW7) will pass the Earth

Filed Under: Universe

Mars Mission 2020

August 7, 2019 by admin Leave a Comment

Nasa will launch a mission to Mars in 2020. This may sound shocking until you learn that this will be another unmanned mission sending a robotic rover to explore the surface and perform experiments.

Manned Mission

The next manned mission to another terrestrial object will probably be a 2024 mission to the moon. We should be good at this, and it is good practice for manned exploration of other terrestrial destinations.

How soon?

The soonest time we might imagine a manned mission to Mars, even just for orbit, would be 2033 returning in 2035. The departure and return times would normally be about 26 months apart. Based on the orbit of the Earth and Mars, 26 months pass between minimums when travel time and energy required would be ideal. Travelling at the wrong time could increase the time and energy required by double. Ideal travel windows for the shortest possible mission (26 months) occur twice a century.

Consider that picking the ideal time would allow the mission to leave Earth and travel to Mars and return in just over 26 months. Picking the worst time for the mission could require in excess of five to ten years to complete.

Fuel

A variable of great import in a trip to Mars is the type and quantity of fuel to use. To achieve the fastest travel time, you would want to accelerate until half way to Mars, and then decelerate until you land. You would need of course, to have plenty of fuel left to get home.

Filed Under: Universe

Asteroid 2019 OK

July 25, 2019 by admin Leave a Comment

On July 24, 2019 an asteroid measuring between 60 and 140 meters in diameter whizzed by planet earth. It was the largest bolide to come between the Earth and the Moon this year. To compare, the Chelyabinsk meteor was estimated to be around 20 meters in size, where 1,491 injuries were reported according to Wikipedia.

Surprise asteroid whizzed by Earth today, and we didn’t even blink https://cnet.co/2Ypv6Y2 via @CNET

An asteroid just buzzed past Earth, and we barely noticed in time http://theconversation.com/an-asteroid-just-buzzed-past-earth-and-we-barely-noticed-in-time-120972 via @ConversationEDU

Asteroid 2019 OK to flyby Earth at 0.19 LD on July 25 – the largest of the year https://watchers.news/2019/07/24/asteroid-2019-ok/

Filed Under: Universe

Fritz Zwicky

May 22, 2019 by admin Leave a Comment

Born around 1900, just 10 years or so younger than Albert Einstein was a truly remarkable astronomer. The father of Dark Energy, Fritz Zwicky was the son of a Swiss Industrialist who lived in Bulgaria.

Dark Matter

Fermi-Lab scientists have spent the last 15 years or so searching for particles of Dark Matter. Using a disk of Gallium metal cooled to nearing zero Kelvin, scientists have not detected the particles. They sought out a particle with mass, traveling at less than the speed of light and unimpeded by other matter.

Missing Matter

Fritz Zwicky first referred to Missing Matter or Missing Mass when he observed galaxies at Mount Wilson, and calculated their mass and the speed of rotation. He found that stars near the edge of the galaxy sped around its center too quickly. Based on the gravitational pull of the galaxy, they should have been flung into space.

Filed Under: Universe

Mars

May 10, 2019 by admin Leave a Comment

It was refreshing to see Bezos show off his lunar module, Blue Moon and its capabilities. Travel to our Moon can take less than a week, and offers a staging ground with an escape velocity substantially lower than Earth’s.

The Moon has a surface area larger than the entire continent of Africa. The State of Texas is 150 times smaller in surface area than the Moon. With a very thin atmosphere, high speed trains could travel the Moon at 1,000 km/hr, or higher.

Musk has touted the importance of Martian habitation. It’s fine that he works on that, while Musk and Bezos each grab roughly $5 billion in federal subsidies per annum they have produced greater results then would have been achieved by a NASA program for a higher cost.

Economists estimate that in 2019 dollars, the Apollo Program cost NASA $ 119 billion. Estimates of the per shot cost for Space Shuttle program put the cost at around $ 500 million per mission.

Lacking a launch program, the Air Force and NASA have used a combination of Amazon and Tesla launch programs, the United Launch Alliance, consisting of Boeing and Lockheed and even Russian government launch programs.

The European Space Agency also uses the Ariane program with launch costs around $150 million per mission.

Filed Under: Universe

Comet Amino Acids

May 7, 2019 by admin Leave a Comment

Having completed the 11th grade early, pondering summer and dreading a stint in mosquito infested singing camp, complete with bad food and latrines, my mind wandered to the origins of life.

Don’t get me wrong, quite literally light came from darkness and the world was created in seven days. But new details emerge about some of the finer details.

The postulation the comets carry glycolic acids, glyceric acids and the amino acid glycene has the song leaders at summer camps atwitter composing new verse for the familiar campfire tunes.

We have known for some time that our solar system contains large stashes of methane is quite well understood. I think there are at least four new verses for Bill Grogan’s goat about the methane on the moon Titan.

Just like the goat had a formula for stopping the train, methane has a molecular formula CH4. Hydrocarbons like methane, propane and butane are found through out the solar system. This should lead us to search for the termites and farting cows of Titan.

One source for methane on earth are landfills, and we now endeavor to capture the methane and use it for productive purposes rather than allowing it to simply drift into the atmosphere.

While some might worry incessantly about the methane entering the atmosphere, with a molecular weight of 16.04 it is more buoyant than glycine which has a molecular weight of 75.07, making it one of the lightest amino acids. The glycine molecule contains a nitrogen atom, two oxygens, two carbons and five (5) hydrogen atoms.

But considering the postulate that comets contain molecular amino acids, combined with evolution created goats, termites and cows, all of with produce methane which is found in the solar system, it seems we have a chicken and egg question, or we have to admit the methane is produced in natural space dust processes without regard for organic activity.

One alternate view of the origin of amino acids is the idea that boiling oceans on earth, primarily in the locality of volcanic vents provided the chemistry needed to transform molecular aldehydes into amino acids. However aldehydes have been confirmed on comets which has caused excitement in the panspermia community.

In the panspermic line of thought, bacteria may have carried DNA between galaxies. The excitement crescendos when these thinkers consider a young Earth during the late bombardment period with warm oceans awaiting the arrival of DNA.

Filed Under: Universe

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