Skip to content

The Progressive Democrat

"I belong to no organized party. I'm a Democrat." – Will Rogers

The Progressive Democrat

Exogeology

Curiosity Rover Reveals Special Mars Sand Dunes Not Seen on Earth

NASA/JPL-Caltech/MSSS
NASA/JPL-Caltech/MSSS

Observations made by NASA’s Curiosity Mars rover of active sand dunes have revealed clues about the history of Mars’ atmosphere, and special “wind-drag ripples” in the sand that are not seen on Earth.

Share this:

  • Email
  • Share on Tumblr
  • Print
  • Tweet
  • Pocket

Like this:

Like Loading...
Franklin Delano Roosevelt
Harry S. Truman
John Fitzgerald Kennedy

Recent Posts

  • The Real Deal with Medicare for All November 21, 2019
  • Democrats Learned the Wrong Lesson From Clinton’s Impeachment June 9, 2019
  • We Will Remember May 26, 2019
  • The Senate has long stood in defense of democracy — and must again. December 11, 2018
  • Brett Kavanaugh Is Not a Victim September 30, 2018
James Earl Carter

Biography Economic policy Economic rights Economics Environment Ethnic discrimination Foreign affairs Foreign policy Free speech Health care History Human rights Middle East Military history Opinion/Editorial Political commentary Political economy Politics Racism Science Social policy Sociology Syria Terrorism Top stories U.S. history US News War crimes Workers' rights World News
William Jefferson Clinton
Barack Hussein Obama

Archives

  • November 2019
  • June 2019
  • May 2019
  • December 2018
  • September 2018
  • July 2018
  • April 2018
  • October 2017
  • July 2017
  • May 2017
  • April 2017
  • March 2017
  • February 2017
  • January 2017
  • December 2016
  • November 2016
  • October 2016
  • September 2016
  • August 2016
  • July 2016
  • June 2016
  • May 2016
  • April 2016
  • March 2016
  • February 2016
  • January 2016
  • December 2015
  • November 2015
  • October 2015
  • September 2015
  • August 2015
  • July 2015
  • June 2015
  • May 2015
  • April 2015
  • March 2015
  • February 2015
  • January 2015
  • December 2014
  • November 2014
  • October 2014
  • September 2014
  • August 2014
  • July 2014
  • June 2014
  • May 2014
  • April 2014
  • March 2014
  • February 2014
  • January 2014
  • December 2013
  • November 2013
  • October 2013
  • September 2013
  • August 2013
Theodore Roosevelt

Blog Stats

  • 13,918 hits
Franklin Delano Roosevelt

Biography Economic policy Economic rights Economics Environment Ethnic discrimination Foreign affairs Foreign policy Free speech Health care History Human rights Middle East Military history Opinion/Editorial Political commentary Political economy Politics Racism Science Social policy Sociology Syria Terrorism Top stories U.S. history US News War crimes Workers' rights World News

The Progressive Democrat

The Progressive Democrat
Harry S. Truman

La Résistance Démocratique

John Fitzgerald Kennedy
Lyndon Baines Johnson

Black Lives Matter

James Earl Carter

Recent Posts

  • The Real Deal with Medicare for All November 21, 2019
  • Democrats Learned the Wrong Lesson From Clinton’s Impeachment June 9, 2019
  • We Will Remember May 26, 2019
  • The Senate has long stood in defense of democracy — and must again. December 11, 2018
  • Brett Kavanaugh Is Not a Victim September 30, 2018
William Jefferson Clinton

Archives

  • November 2019
  • June 2019
  • May 2019
  • December 2018
  • September 2018
  • July 2018
  • April 2018
  • October 2017
  • July 2017
  • May 2017
  • April 2017
  • March 2017
  • February 2017
  • January 2017
  • December 2016
  • November 2016
  • October 2016
  • September 2016
  • August 2016
  • July 2016
  • June 2016
  • May 2016
  • April 2016
  • March 2016
  • February 2016
  • January 2016
  • December 2015
  • November 2015
  • October 2015
  • September 2015
  • August 2015
  • July 2015
  • June 2015
  • May 2015
  • April 2015
  • March 2015
  • February 2015
  • January 2015
  • December 2014
  • November 2014
  • October 2014
  • September 2014
  • August 2014
  • July 2014
  • June 2014
  • May 2014
  • April 2014
  • March 2014
  • February 2014
  • January 2014
  • December 2013
  • November 2013
  • October 2013
  • September 2013
  • August 2013
Barack Hussein Obama

Blog Stats

  • 13,918 hits
Theodore Roosevelt
The Progressive Democrat Blog at WordPress.com.
Cancel

You must be logged in to post a comment.

Loading Comments...
Comment
    ×
    loading Cancel
    Post was not sent - check your email addresses!
    Email check failed, please try again
    Sorry, your blog cannot share posts by email.
    %d bloggers like this: