Posts Tagged ‘Astronomy’

Jet by the Light of the Moon

Thursday, May 12th, 2011


By Jim Haklar

I have to start off by saying that this is a real, not composite, image. The plane actually flew in front of the moon. It was taken almost three years ago on a sticky summer night at the Edison Environmental Center, EPA’s laboratory facilities in Edison, New Jersey. I didn’t intend to catch a plane flying in front of the moon, but as I was focusing my telescope one plane flew by and I missed the shot. Since the Environmental Center is near the flight path of Newark Liberty Airport, one of the busiest airports in the United States, all I had to do was wait a few minutes for another plane to go by. The only problem I had was fighting off the mosquitoes!

I’ve always been interested in the night sky and I received my first (toy) telescope when I was about six years old. My interest in astronomy increased in high school, but I only started getting seriously into astrophotography – a hobby that combines astronomy and photography – about 10 years ago. Since then I’ve taken pictures of the sun, moon, planets and “deep sky” objects. The hobby has come a very long way since I started looking through a telescope many years ago!

About the author: Jim is an environmental engineer in EPA’s Edison Environmental Center, currently working in the PCB program. Since 1985 he has worked in a number of different programs including water permits and compliance, Superfund, and public affairs.

Editor’s Note: The opinions expressed in Greenversations are those of the author. They do not reflect EPA policy, endorsement, or action, and EPA does not verify the accuracy or science of the contents of the blog.

Spying on the Lunar Landscape

Thursday, April 28th, 2011


By Jim Haklar

Here’s an image of the moon’s crater, Tycho, that I took in March of this year (Tycho is the bright crater in the center of the picture). Tycho is about 50 miles in diameter and it is very young – only around 108 million years old! There are other craters on the moon that are almost 4 billion years old, so Tycho is a mere baby compared to those senior citizens of the lunar landscape. Tycho was formed as a result of another celestial body hitting the moon at that spot, and with binoculars you can see “rays” of bright material that has been thrown far away from the impact site.

Tycho has a role in the science fiction movie 2001: A Space Odyssey, since it is the location where modern humans find an alien machine (or “monolith”) buried in the crater.

I’ve always been interested in the night sky, and I can remember receiving my first (toy) telescope when I was about six years old. While my interest in astronomy increased in high school, I only started getting seriously into astrophotography – a hobby that combines astronomy and photography – about 10 years ago. Since then I’ve taken pictures of the sun, moon, planets and “deep sky” objects, all of which I would like to share with you. The hobby has come a very long way since I started looking through a telescope many years ago!

About the author: Jim is an environmental engineer in EPA’s Edison Environmental Center, currently working in the PCB program. Since 1985 he has worked in a number of different programs including water permits and compliance, Superfund, and public affairs.

Editor’s Note: The opinions expressed in Greenversations are those of the author. They do not reflect EPA policy, endorsement, or action, and EPA does not verify the accuracy or science of the contents of the blog.

Science Wednesday: Earthrise – The Picture That Inspired the Environmental Movement

Wednesday, July 1st, 2009


Each week we write about the science behind environmental protection. Previous Science Wednesdays.

I’ve never been terribly interested in space exploration. Though I do remember pictures Earth–our “big blue marble”–from my earliest childhood, I’ve been tempted to think on occasion, “What a waste of money. We have so many problems on Earth to solve.” What I didn’t realize was how those images have inspired me to think of the world as a global community.

I guess I shouldn’t have been surprised to learn how the first picture of Earth taken from space inspired the environmental movement. I learned the connection while searching for a way to link Astronomy with EPA research for our Year of Science Web site.

The Apollo 8 astronauts were the first to go to far side of the Moon. They had prepared for every scenario except one: the awesome sight of Earth rising on a black lunar horizon. Discovering the scene from their space capsule, one astronaut exclaimed, “Oh my God! Look at that picture over there! Here’s the Earth coming up. Wow, is that pretty.” The crew scrambled for a camera. The photographs appeared for the first time in print just over 40 years ago, in January 1969.

photo of a half-earth rising in a black sky over the lunar horizon

The picture became known as “Earthrise” and the image of the world from the perspective of a desolate lunar surface became an iconic reminder of our need to protect the Earth’s fragile resources. Earthrise and images like it are widely credited with inspiring the environmental movement and indirectly the start of the Environmental Protection Agency in 1970. In Life’s 100 Photographs that Changed the World, wilderness photographer Galen Rowell called it “the most influential environmental photograph ever taken.”
Earth seems so big and indestructible from our perspective, and so tiny and vulnerable when seen from space.

Learning this piece of history has given me new respect for the interconnectedness between different branches of science. My first impression was that Astronomy and Earth Science had  nothing in common. Working for EPA’s Office of Research and Development has helped me realize that satellite imaging and data collection play a large role in helping inform scientists in environmental protection and human health. Environmental monitoring once done largely in isolation is now inspiring international cooperation, such as the Global Earth Observation System of Systems, or GEOSS.

It’s inspiring to see that 40 years after the Earthrise photo was taken, science is helping us become a global community.

About the Author: Moira McGuinness joined the Science Communications Staff of EPA’s Office of Research and Development in February 2009. She manages the content on EPA’s Year of Science Web site.

Science Wednesday: Year of Science-Question of the Month

Wednesday, July 1st, 2009


Each week we write about the science behind environmental protection. Previous Science Wednesdays.

For each month in 2009, the Year of Science—we will pose a question related to science. Please let us know your thoughts as comments, and feel free to respond to earlier comments, or post new ideas.

The Year of Science theme for July is “Celebrate Astronomy“.

Just over 40 years ago the image known as Earthrise was published. It was the first photograph taken of Earth from Deep Space.

How does seeing a photograph of Earth taken from Space change your thinking about the environment?