Top Astronomy Stories in 2013

This is the time of year to highlight some of the great discoveries of the last year, and we have plenty to ponder.  CBS news highlights events such as the discovery of the Higgs Boson, life in Antarctic lakes, more evidence of water on Mars, and the Chinese moon landing.  I would add the Indian mission to Mars as another key event.

CNN’s list of 2013 scientific stories included the stray asteroid that hit the Russian city of Chelyabinsk in February 2013 (notice this is a story rather than a discovery, though the people in Russia certainly discovered something new about the risk of life here on the third rock from the sun).

Wired magazine covered both discoveries and stories, with discoveries including estimates that our galaxy may contain about 10 billion Earth-like planets (using data from NASA’s Kepler space telescope).  Top stories included Mars One, the plan to send humans one-way to Mars in 10 years, and the mysterious environment encountered by Voyager 1 at the edge of the Sun’s heliosheath.  Wired also discusses the diminishing availability plutonium-238, which may impact out ability to repeat Voyager-like missions in the future.

Great Accomplishments in 2012

Before we get too far into 2012, I wanted to highlight some of the great space-related achievements from last year.  While there were many noteworthy events, a few come to mind as setting the stage for years to come.  Here are four that I have selected.

-- SpaceX:  The company's successful resupply mission to the International Space Station has created a new relationship between the U.S. space program and the private sector.  Today private companies are in a position to replace NASA for routine missions.  The question now is whether they someday supplant NASA.

-- Higgs Bosom:  The discovery of this mysterious particle explaining most of the universe will keep scientists busy for years.  Brian Cox, the English professor and particle physicist, stated in The Guardian:

The hubristic nature of daring to imagine it, of daring to say: "This is how I think the universe works", is truly brilliant. It's difficult for anyone to get their head around – it's only a century ago that Rutherford discovered the atomic nucleus. We didn't even know that atoms existed 150 years ago. This will speed up our understanding of the universe rapidly.

-- Voyager Exiting the Solar System:  The two Voyager spacecraft are crossing the border between home and the unknown as they exited our solar system and began a new journey.  They are still part of the protecting heliosphere of our system, but not for much longer. What is amazing beyond this feat is that we can still communicate with both spacecraft 35 years after their launch. According to NASA, the signal from Voyager 1 takes approximately 17 hours to travel to Earth. The durability of these craft and ingenuity of our space program is pretty amazing. 

-- Curiosity on Mars:  The successful landing of the Curiosity rover on Mars was a solid accomplishment for NASA and mankind.  With its cluster of sophisticated instruments, we have a chance to learn much more about the Red Planet and its origins.  With the success of Curiosity, NASA is planning a second rover.  Nothing breeds optimism (and duplication) like success. 

Update:  Scientific American released its own list of Top 10 Science Stories of 2012.  We certainly agree on many topics.

Sally Ride's Stories

If you are interested in Sally Ride's career and some of her writings, you can find plenty of published material.  Many are geared for younger readers to engender their interest in space.  For instance, Ms. Ride's Space Shuttle adventures and more are recounted in her 1989 book for younger readers To Space & Back.  Ms. Ride also co-authored many other books with Tam O'Shaughnessy related to various aspects of the space program designed for younger readers, including:

-- Voyager: An Adventure to the Edge of the Solar System.  Published in 2005, Kirkus Reviews opined:

Astronaut/scientist Ride teams up with a science teacher for a book about the Voyager spacecrafts' epic journeys. During them, they passed close enough to Jupiter, Saturn, Uranus, and Neptune to take detailed pictures and measurements; the result is a wealth of new information (especially about the planets' rings and moons), gorgeous color photos, and some scientific puzzles.

-- Exploring Our Solar System.  Published in 2003.  Booklist opined:

In this copiously illustrated volume, astronaut Ride and educator O'Shaughnessy offer a thrilling introduction to our solar system. Although our neighboring planets were "formed at about the same time and from about the same stuff," the authors write, "they are nine very different worlds." Each chapter takes readers on a planetary tour. The section on Earth includes a time line and theories of the evolution of life on our planet. The authors explain facts in simple, straightforward language that doesn't condescend to a young audience, and the visuals include exciting images from space, charts that contrast the planets' properties, and artists' renderings of unattainable space views and imagined explorations. Throughout, the authors successfully put the planets in wider context, as in the section "Venus, Earth and Mars--Why They Are So Different." Useful appended charts, including a full listing of all space flights, add to the appeal.

-- The Mystery of Mars.  Published in 1999.  School Library Journal opined:

Actually a physical portrait of two planets, this survey draws illuminating parallels and contrasts between the history, structure, and current state of both Earth and Mars. Imparting a vivid sense of how inhospitable the red planet is, at least to life as we know it, Ride and O'Shaughnessy supply a lively mix of sweeping claims ("Mars has the largest volcanoes and the longest, deepest canyons in the entire solar system"), specific observations, and logical extrapolations. The authors' comments are enhanced by a generous array of computer graphics, precisely detailed paintings, and recent photographs from both space and ground level. The material includes information gathered from the 1997 Pathfinder mission and a mention of the Mars Climate Orbiter, though not of the latter's failure.