Tag: NASA

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Martian Global Aurora

Martian Global Aurora
On October 6 NASA’s daily space news website apod.nasa.gov contained pictures of a Martian global aurora. Because Mars has virtually no magnetic field, the radiation level goes sky high during solar storms. In the latest storm, radiation levels doubled–which would have been dangerous to life on Mars.

Earth’s magnetic field is very strong, and deflects radiation coming from the Sun. The radiation is deflected toward the poles, which is why we see the auroras near the poles. By deflecting the radiation, the magnetic field protects life on the Earth from dangerous levels. The more we learn about the cosmos, the more we see factors that make life possible on Earth. Our magnetic field is one more example of the design of our planet.

Looking for life in space is not just about whether there is water on a planet. There are a huge number of other factors that must be present. A strong magnetic field to shield from radiation is just one of those factors. Of course, an atmosphere suitable for life is also a requirement. NASA has a space probe called MAVEN (Mars Atmosphere and Volatile EvolutioN) orbiting Mars. The purpose is to find out if Mars lost its atmosphere due to not having a strong magnetic field.

The Martian global aurora is just one more reminder of the blessing of life on planet Earth. It also indicates that life on this planet is no accident.
–John N. Clayton © 2017

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More Viewers than the Super Bowl

More Viewers than the Super Bowl
The “Great American Eclipse” of 2017 had more viewers than the Super Bowl. According to Nielson ratings, the 2017 Super Bowl had 111 million viewers on TV. About 215 million adults, or 88 percent of the United States adult population, watched the eclipse. That total includes those who watched it live, plus TV and internet viewers. Of course, many children watched it too.

The University of Michigan and NASA compiled the viewing statistics with a joint survey. Sixty-one million adults in the United States watched the eclipse on TV, computers, tablets, or phones. Unlike the Super Bowl the vast majority, about 154 million, watched it directly with the aid of viewing glasses or pinhole cameras. About 20 million traveled to locations where they could see the totality. I can testify that the roads in southern Illinois were crowded with travelers. After the eclipse, it took 3 hours to drive 40 miles. You can watch a speeded-up view of the eclipse on this video. Be sure to turn the sound up so that you can hear the reaction of the people around me during the eclipse.

In addition to a large viewership, the satisfaction rate was high. Seven out of ten said they were not disappointed. (Probably about half of the Super Bowl crowd was disappointed because their team lost.) If you listen to the video that I edited, you can tell that the crowd on the bluff overlooking the Ohio River was not disappointed.

We are pleased that there was this much interest in a science-related event. God’s creation can draw more viewers than the Super Bowl.

–Roland Earnst © 2017

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Cassini Exceeded Expectations

Saturn with its rings and some of its moons.Cassini Exceeded Expectations

On the morning of September 15, 2017, Cassini ended its life in fiery destruction. Cassini was a space probe orbiting and studying Saturn, and by all measures, Cassini exceeded expectations.

NASA, the European Space Agency, and the Italian Space Agency worked together on the Cassini-Huygens space exploration project. The mission was to study Saturn along with its moons and rings. NASA launched the spacecraft in 1997, and it arrived near Saturn and went into orbit around that planet in 2004.

The Huygens (pronounced hoy-guns) lander module, provided by the ESA, separated from the Cassini probe and landed on Saturn’s largest moon, Titan, in 2005. The parachute landing was successful, and the probe sent out data for about 90 minutes. In that brief time, scientists learned much about the surface of that distant moon. Viewed from Titan’s surface, the Sun appeared about the size and brightness of a car headlight 150 meters away. The Huygens probe took pictures and told us that Titan’s surface is dotted with rivers, lakes, and oceans made of methane and ethane. It also has dunes up to 300 feet (91 meters) tall.

Meanwhile, the Cassini probe continued to orbit Saturn and send back amazing and beautiful pictures of its rings and moons for 13 years. Cassini helped us to learn more about the moons of Saturn. The planet has at least 53 moons and possibly eight more. We learned that the moon Enceladus is covered with a liquid water ocean with a surface layer of ice 19 to 25 miles (30 to 40 km) thick. Geysers of water erupt from cracks in the ice. The rings of Saturn are a constantly changing collection of ice particles and small rocks. Saturn has hurricane-like storms at both poles and a hexagon-shaped jet stream at the north pole. How long is a day on Saturn? That’s hard to determine because it is a gas planet and not all parts of it move at the same speed. Scientists estimate a little more than 10 hours.

Cassini exceeded expectations by surviving seven years of travel to Saturn plus 13 years orbiting the planet. As it ran out of fuel, scientists sent it hurtling into Saturn’s atmosphere to burn up so it could not contaminate any of Saturn’s moons by crashing into them.

We are fascinated by the Cassini photos and scientists will continue to study them for years. The picture we posted shows a Cassini view of Saturn and its rings with a bright spot visible below the rings. That spot is the planet where we live. As we look at the hostile environment of space and the other planets, we realize how incredible Earth is. God has given us a place with everything we need for life. You might say that compared to any other place in the universe, Earth exceeds expectations.
–Roland Earnst © 2017

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TRAPPIST-1 Star System Revisited

TRAPPIST-1 Planet Lineup - NASA
TRAPPIST-1 Planet Lineup – NASA Illustration

We commented in a previous post about extra-solar planets (planets orbiting other stars), and whether those planets could have life on them. The media seem to convey the idea that there are hundreds of “earths” all containing life-forms similar to us. They suggest that if there are many Earth-like planets with life on them, then that indicates that Earth and the life on it came about by chance processes. In February, NASA called a special news conference to announce that they had found a star they call TRAPPIST-1 which had seven Earth-sized planets orbiting it in the “Goldilocks Zone.” The Goldilocks Zone is the area where water could exist in the liquid state. Many media sources were quick to announce that NASA had found seven planets that were “Earth twins” and almost surely would be inhabited.

Let us emphasize again that finding life in space is not an issue of whether God exists. If scientists find life in space, it will have been created by God and will have a purpose in existing. This particular find, however, is just another example of how quickly and irresponsibly the media will jump to promote an agenda that will sell. As more data has become available, it is becoming increasingly obvious that this seven-planet system is not an ideal place for life. In fact, any life form that happened to be there would be destroyed by the properties of the system.

TRAPPIST-1, the star that serves as the “sun,” is a very cool dwarf star. That means it gives off a very limited spectrum of light. The critical wavelengths required for photosynthesis and chemosynthesis are simply not present. The masses of these planets range from .4 to 1.4 times the mass of Earth. That means the smaller planets will almost surely not have an atmosphere since they are smaller than Mars. The length of time for the planets to orbit their star varies from 1.5 days to 20 days. That makes a very short year. They are all less than 6 million miles from their parent star. That means all activity on the star would likely be lethal to life-forms on the planets. For a comparison, Mercury, the planet closest to our Sun is separated from it by 36.8 million miles. Earth is 93 million miles from the Sun.

God may have prepared other Earth-like planets, and they may have even been equipped with life. The point is that it is easy to see our planet’s uniqueness, design, and careful planning. We haven’t yet found anyplace like it in other star systems.
Data from Astronomy, July 2017, page 8.
–John N. Clayton © 2017

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TRAPPIST-1 Planets and Life

TRAPPIST-1 Planet Lineup - NASA
TRAPPIST-1 Planet Lineup – NASA Illustration

In May of 2016 astronomers using the Transiting Planets and Planetesimals Small Telescope (called TRAPPIST) announced the finding of three planets orbiting a single star which has been labeled “TRAPPIST-1.” On February 22, 2017, astronomers released to the media a report stating that they have discovered four more planets orbiting Trappist-1. The planets are small, and their location in relation to the star they orbit indicates that they could have liquid water on them. The media has picked this up and USA Today (February 23, 2017, page B1) has headlined “Newly Discovered Network of Planets Could Harbor Life.”

This is just another example of media sensationalizing and misapplying a scientific study. Let us point out before going any further that we have repeatedly said that there may be life elsewhere in the universe. We have also pointed out that chance is an unworkable explanation for the creation of life anywhere. The Bible doesn’t say this is the only place where God has seen fit to create life, so the question of life in space is moot.

The facts are that this is a remarkable scientific achievement made possible because the planets transit the star so that we can see them because we are looking at them at the proper angle. We now know that the process of star formation produces multiple planets orbiting the stars. To suggest that there will be life on one of these planets is a wild speculation. First of all, the star is very small and very dim. It is a red star just slightly bigger than Jupiter. That means it will emit the wrong wavelengths for photosynthetic life at least, and radiation levels are probably prohibitive. There are many other parameters that have to be carefully chosen for life to exist–things like shielding magnetic fields, sheltering major planets, proper spin rates, protective atmospheric layers, proper densities of the atmosphere, and many more. A discussion of some of these parameters is available in videos # 6 & 7 on our doesgodexist.tv website.
–John N. Clayton © 2017