Category: Behind The Black

Dried up lake beds on Mars?

8:55 pm

A paper published on Saturday in the Journal of Geophysical Research – Planets of the American Geophysical Union, scientists suggest that the polygonal shaped cracks seen in the crater floors on many Martian craters could be evidence of ancient lakes. The evidence also suggests that the lakes were formed by the impact that created the crater. The energy of the impact melted underground ice to form a temporary lake inside the crater, which eventually dries out, leaving behind the polygons. From the abstract:

We propose desiccation to be a dominant mechanism for the formation of Crater Floor Polygons without ruling out thermal contraction as a possible contributor in some cases. This implies that lakes or water-rich sediments occupied the craters in the past. Many such aqueous environments have no apparent external source of water, and thus, hydrothermal processes occurring shortly after the impact event may be viable explanations for the observed evidence.

Crater floor polygons on Mars

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Chicago mainstream reporters threaten reporter asking tough questions of Emanuel

7:25 pm

Updated and bumped.The police have now issued an arrest warrent against reporter Jay Levin. (This is based on his behavior in the video below. He is the reporter in the red wind breaker, threatening another reporter, William Kelly, who was asking tough questions of Rahm Emanuel.) Key quote:

This morning, I [William Kelly] filed a police report and signed an arrest warrant against Jay Levine for assault. The Chicago police have already reviewed the video and agreed that an assault was committed.

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Is there no wonder people joke about a “state-run” media? Here, Chicago mainstream reporters threaten a reporter when he tries to ask Rahm Emanuel some tough questions. More here. Best line from CBS reporter Jay Levin:

Let him finish or I’m going to deck you!

Watch the whole video. The good stuff begins at around one minute.

Sorry that much of today’s posts relate to politics and not science or space. I can only follow the news where it takes me.

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The New York Mets 1969

8:03 pm

An evening pause: Who says miracles cannot happen? In 1969, the New York Mets proved that they can. Even if you are not a sports fan, watch this short film (which only covers the World Series and not the entire astonishing season) and you’ll get a glimmer of how miraculous that victory was. Today, October 16, is the anniversary of that victory.

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Charles Lollar vs Steny Hoyer

5:11 pm

Steny Hoyer must be in trouble. At the Charles County Candidate Forum on Wednesday, he lowered himself to actually debate his opponents for the upcoming Congressional election, the first time I have seen this happen since I moved to his district in 1999. However, his Republican opponent, Charles Lollar, got the last word, and made Hoyer look bad.

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Recent landslide on Mars

2:43 pm

Mars Reconnaissance Orbiter has taken this image of what appears to be a recent landslide on Mars, located on the southeast wall of Zunil crater. When the landslide took place is not known, though the color suggests that it happened so recently that the debris has not yet been covered by wind-blown dust.

landslide on Mars

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Two Democratic candidates try to silence their opposition

1:46 pm

Freedom of speech alert! Rather than debate their opponents, two Democratic House candidates are trying to shut them up.

In the first case, incumbent Steve Driehaus (D-Ohio) is trying to use election laws to block an anti-abortion group from putting up billboards against him. Ed Morrissey at hotair.com has more details.

In the second case, incumbent Kathy Dahlkemper (D-Pennsylvania) is trying to get radio stations to pull the radio ads of another anti-abortion group which attack her for her healthcare vote.

In both cases, the Democratic candidates voted for the Healthcare bill, and seem to want to hide that fact now from the voters. Not only does this illustrate the contempt they have of freedom of speech, it shows us just how toxic the healthcare bill has become politically. I suspect that this law is going to dog the Democrats who voted for it for years to come.

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A wish list of spectacular future planetary missions

5:01 pm

Steve Squyres of Cornell University and the project scientist of the Mars rovers Spirit and Opportunity spoke today at an astrobiology symposium in Arlington, Virginia. He described several spectacular planetary missions that might be flown in the coming decade. All are being considered. None have yet been chosen or funded.

  • A mission to grab a sample from a comet and return it to Earth.

  • A mission to put a rover or lander on one of the poles of Mars to study the frozen layers of water under the icecap.

  • Mars sample return mission. This mission is so difficult and expensive that it probably would be broken down into three parts:

    • Two rovers on the surface to gather and cache sample material.

    • A lander/rover mission to grab the samples and bring them up to Mars orbit. “Putting into orbit a precious cargo the size of a coconut,” Squyres said.

    • A mission to grab the sample cargo in Martian orbit and return it to Earth.

  • An orbiter to study both Jupiter and its moon Europa.

  • An orbiter to Enceladus, the moon of Saturn, to study the water and organic chemistry in its mysterious plumes.

  • An orbiter to Titan, with balloon to probe the atmosphere as well as a “lake lander, a boat” to study Titan’s lakes.

  • A variety of landers and rovers to go to Venus. One of the more astonishing mission concepts would land, then take off again to visit different places on the surface.

Squyres is the co-chair of a committee of the National Science Foundation that is right now putting together a decadal survey for outlining unmanned planetary research for the next decade. This survey is expected to be released in March, which is when we will find out which of the above missions the planetary science community prefers.

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Climate Talks in China Limp Toward Deadlock

12:25 pm

Thank god for small blessings. The climate talks in China this past week are limping towards a deadlock, with no new agreements. It appears that the biggest problem are disagreements between China and the U.S.

Personally, I love how this quote from the article so nicely illustrates the totalitarian nature of many climate activists and their organizations:

Currently, the World Resources Institute is proposing the White House abandon legislative means and rely on the existing Clean Air Act to make emissions reductions administratively.

In other words, if the elected Congress of the United States is unwilling to pass restrictions (because a majority of the people of the United States oppose them), then the government should ignore the people’s wishes and impose those restrictions, without permission.

Ugh. The less power these environmental dictators have, the better for everyone else.

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