You are here: Home / Archives for interplanetary robots
The Sky is Waiting.
The Current Number of Exoplanets Discovered is: 4133

Pictured is a Delta IV rocket launch from Cape Canaveral on November 21st, 2010. The image is a 20 second exposure taken at dusk, shot from about 100 miles west of the launch site. The launch placed a classified payload in orbit for the United States Air Force.
Difficult but not impossible to catch against the dawn or dusk sky, spotting an extreme crescent moon can be a challenge. The slender crescent pictured was shot 30 minutes before sunrise when the Moon was less than 20 hours away from New.� A true feat of visual athletics to catch, a good pair of binoculars or a well aimed wide field telescopic view can help with the hunt.
The Sun is our nearest star, and goes through an 11-year cycle of activity. This image was taken via a properly filtered telescope, and shows the Sun as it appeared during its last maximum peak in 2003. This was during solar cycle #23, a period during which the Sun hurled several large flares Earthward. The next solar cycle is due to peak around 2013-14.
Located in the belt of the constellation Orion, Messier 42, also known as the Orion Nebula is one of the finest deep sky objects in the northern hemisphere sky. Just visible as a faint smudge to the naked eye on a clear dark night, the Orion Nebula is a sure star party favorite, as it shows tendrils of gas contrasted with bright stars. M42 is a large stellar nursery, a star forming region about 1,000 light years distant.
Orbiting the planet in Low Earth Orbit (LEO) every 90 minutes, many people fail to realize that you can see the International Space Station (ISS) from most of the planet on a near-weekly basis. In fact, the ISS has been known to make up to four visible passes over the same location in one night. The image pictured is from the Fourth of July, 2011 and is a 20 second exposure of a bright ISS pass.
�
Next to the Sun, the two brightest objects in the sky are the Moon and the planet Venus. In fact, when Venus is favorably placed next to the Moon, it might just be possible to spot the two in the daytime. Another intriguing effect known as earthshine or ashen light is also seen in the image on the night side of the Moon; this is caused by sunlight reflected back off of the Earth towards our only satellite.
A mosaic of three images taken during the total lunar eclipse of December 21st, 2010. The eclipse occurred the same day as the winter solstice. The curve and size of the Earth�s shadow is apparent in the image.
Copyright © 2019 · Education Theme on Genesis Framework · WordPress · Log in
Review: Interplanetary Robots by Rod Pyle
On sale now.
What’s up in space exploration? We just passed to 60 year mark for the Space Age late last year, with the launch of Sputnik 1 by the Soviet Union in October 1957. In 60 years, humanity has gone from having a tough time hitting the Moon, to sending spacecraft out of the solar system and in to intergalactic space.
We recently had a chance to read a fascinating new book that chronicles those heady early years of space exploration, along with a look at where we’re at now, and where we might be headed. We’re talking about Interplanetary Robots: True Stories of Space Exploration by Rod Pyle, out from Prometheus Books on January 15th, 2019.
A long-time journalist covering the spaceflight scene, Rod Pyle brings you-are-there tales from the robotic exploration of the planets, straight out of the Jet Propulsion Laboratory press room to the printed page.
Even though I’ve read and reported lots on space exploration and the history of the Space Age, I learned a thing or two reading Interplanetary Robots. For example: The book goes deep into the Soviet Union’s early successes at Venus, as well as its long string of failures at Mars. Considering the technology of the day and how they were expected to function in largely unknown interplanetary environments running off of primitive clockwork computer programs, it’s amazing that they (occasionally) worked at all.
The book also intersperses looks back with looks ahead… from interstellar missions to clockwork rovers exploring the hell-scape of Venus, you’ll find these exotic and interesting future proposals in the book. Missions that never were also crop up, as NASA’s planetary program walks the continual tightrope of what it would like to do, versus what it can afford. For every mission that makes it to the launch pad, there are three more that die in the proposal stage.
I really like how Interplanetary Robots tells the tales of just how missions and mission planners overcame technical challenges to return in triumph. The story of how both Voyagers and the Grand Tour missions to the outer planets is retold, missions that are now with us for four decades and counting as they exit the solar system. I find it amusing that there’s nearly a point in every robotic mission where the question of �do we really need a camera?� is raised… but the legacy of nearly every mission is the photos that are returned afterwards, whether or not they had much to offer for scientific merit.
The book also tells the tale of the Galileo mission to Jupiter,with its stuck main antenna, which forced engineers to return data via the low gain antenna at an extremely slow data rate, something that would make ye ole dial-up modem look lightning fast.
Our one minor nitpick; the book is very JPL-centric, and gives other Applied Physics Laboratory (APL) scout class missions such as New Horizons and Mercury Messenger very light mention. Little mention is made of key European and Japanese Space Agency missions, beyond Huygens’ historic landing on Titan, leaving loopholes in the narrative. The author also seems to have a very optimistic view of the future of planetary space exploration, though lots of our eyes in the outer solar system are going dark in this and the coming decade, and plans for replacements such as Europa Clipper, a Titan Helicopter and a Uranus and/or Neptune Orbiter are all far off.
Still, a nuclear-powered helicopter plying the alien skies of Titan is still something we’d love to see. Overall, we enjoyed and would recommend Interplanetary Robots, for telling some great unknown tales of planetary exploration.
Editor’s note: After 11 plus years, we’re sun-setting Astroguyz as a blog. It has been a fun ride, but it’s time to move on. We’ve seen the platform grow from an occasional blog into a freelance writing career. Hey, we’re still surprised that folks actually pay us money for the words coming out of our head! Anyhow, we’ll still be reviewing books on Amazon, writing for Universe Today and Sky and Telescope, and anyone else who will have us. It’s been real!