Fireballs Across the Sky

My great-grandparents were married in 1870. They farmed in west-central Illinois a mile from his brother. The brothers moved to Illinois from Ohio. Earlier, they moved to Ohio from Virginia during the Civil War. The rectangle in this 1941 aerial photo shows the location of the farmstead where my great-grandparents lived after they were married.

1941

Here are my great-grandparents and their five children in about 1890. My grandfather is the one in the center back row.

Here is my great-grandfather’s brother and his wife. They eventually had seven children. Notice a date of Oct 74 at the bottom. That is when a relative photographed the original photo from nearly 100 years before.

 

Show me more…

Advertisements

DAWN Spacecraft | End of Mission

NASA’s DAWN spacecraft ran out of fuel used to point its antenna toward Earth. Communications failed on 31 Oct and 1 Nov 2018. It was launched in 2007 to study minor-planets Vesta and Ceres, the two largest asteroid bodies in our solar system. It achieved the mission goals which I have highlighted in several previous posts. NASA issued this press release about the DAWN mission which I encourage you to read.

DAWN was the first spacecraft to fly to a body of the solar system, descend into orbit, conduct science, ascend from orbit, travel to a second body, descend into orbit, conduct science, and all under the propulsive power of an ion engine instead of a chemical rocket engine.

Chief Engineer and Mission Director Mark Rayman reflects on the mission in this video.

 

ISS Passed by Saturn and Mars

The International Space Station approached from the northwest at 9 pm on 8 Aug 2018. It went high overhead in a southeasterly direction. It tracked above Saturn and the Teapot in Sagittarius before disappearing near Mars. There it entered the darkness of Earth’s shadow.

Taken on iPad with NightCap | ISS mode | 189 sec exp

Here is the same image annotated. Can you also see the light trails left by two passing jets? Tap images for more detailed views.

Looking SE at 9 pm

The End | Near or Not

In case you didn’t notice, the predicted end of the world on 19 Nov 2017 did not happen. I don’t expect it to happen any time soon. I don’t normally make bold predictions about anything. There was one exception in 1974 in the Nixon administration. I successfully predicted he would resign. I think I was lucky.

If you are a believer in the end times prophesies, you may scoff at my prediction. That’s ok. I will give 10 reasons why I think I’m right. Mine are based on science. Join me below the glowing solar firestorm of death and destruction for the reasons we can feel the end is NOT near.


Show me more…

Mars Bound | I Have My Boarding Pass

My bags are packed. I am ready to join 2.4 million other passengers as we begin our journey to Mars in May 2018 aboard the INSIGHT spacecraft. The trip will take about 7 months. It is a one-way journey.

Click to read the fine print. My flight miles award will be enormous.

INSIGHT is the acronym for Interior Exploration using Seismic Investigations, Geodesy and Heat Transport. NASA loves acronyms. Previous Mars missions have studied intensively the surface and atmosphere of the planet. This spacecraft is the first designed to study the interior in hopes of finding clues to the formation of the rocky inner planets. The spacecraft will use seismology, heat flow equipment, and very precise tracking to probe the planet below ground.

The opportunity to sign up for the mission ended on November 1. There were over 2.4 million people who did so. In this link are examples which include children from an elementary school, mission and science managers, as well as famous people like William Shatner.

Clinton Prairie Elementary School | Frankfort, Indiana

Our names will be placed on silicon microchips and attached to the spacecraft. I think it is cool that so many names will be planted on another planet. Perhaps future space travelers will find them. Would you be willing to make the actual trip knowing it was one-way?

SDO | Solar Temps | Hot to Hotter

The sun’s output in the visible spectrum peaks around yellow. Our eyes are most sensitive to that part of the visible spectrum. The sun also radiates in a broad range of other wavelengths invisible to our eyes. Each comes from dynamics taking place on the surface and in the atmosphere of the sun.

I’ve written about NASA’s Solar Dynamics Observatory (SDO) earlier in a previous post. SDO observes and images the sun several times a minute at ten different wavelengths to give a more complete picture of the activity at and near the surface. A description of those wavelengths is available here. I used the images from the SDO site to render this image of the sun at those ten wavelengths. The yellow center represents the sun’s surface. Each ring of color is at a higher altitude and temperature in the atmosphere of the sun.

Original images used from: NASA/GSFC/Solar Dynamics Observatory

Show me more…