Astronomy
The study of the universe and space, including planets, the solar system and comets
From “One Small Step” to Settlement
At the recent International Space Development Conference in Huntsville, Augustine committee member and CEO of XCOR Aerospace Jeff Greason gave a talk on the goals of human spaceflight. While he discussed many things that I agree with (in particular, making the use of off-planet resources a high priority), one idea in particular stood out. Greason [...]
June 03, 2011 |
By Paul D. Spudis
Presidential Pronouncements on Space: Some 50th Anniversary Thoughts
Tomorrow is the 50th anniversary of President John F. Kennedy’s special address to Congress – a request for supplemental appropriation for a variety of projects but most famously remembered for the announcement of his Man-Moon-Decade goal of Project Apollo. That event, cited by space advocates and excerpted in space and history documentaries, is remembered as [...]
May 24, 2011 |
By Paul D. Spudis
Who's short-sighted?
Apollo 17 Commander Eugene Cernan recently voiced his doubts and concerns over the future of the human spaceflight program, while former Lockheed-Martin CEO Norman Augustine reflected on the current state of our space “vision” and/or the possible lack thereof. I found these perspectives by two gia...
May 04, 2011 |
By Paul D. Spudis
A&S Interview: George Mueller
One of the guiding geniuses behind the Apollo program is the winner of this year's National Air and Space Museum Trophy for lifetime achievement.
May 2011 |
By Michael Klesius
“Embrace the end of human spaceflight!”
"let us sit upon the ground. And tell sad stories of the death of kings” – Richard II, Act III, Scene 2 The nearly simultaneous 50th anniversary of the beginning of human spaceflight and the forthcoming end of the Space Shuttle program has philosophical members of the chattering classes making the...
April 19, 2011 |
By Paul D. Spudis
Kinect to the Universe
I became fascinated by the Xbox 360 Kinect system long before it hit the stores—back when Microsoft was still developing it under the name Project Natal. The commercial product hasn't yet delivered on the full promise of this demo, but I expect that it will, and fairly soon. Kinect is already the f...
April 18, 2011 |
By Tony Reichhardt
A Rationale for Cislunar Space
At a recent workshop on lunar return, a critical part of the discussion focused on the need for a statement of purpose – a value proposition for the Moon. Over the years I’ve attempted to distill my rationale for lunar return (my “elevator speech” if you will) into a clearly stated and persuasive ...
April 10, 2011 |
By Paul D. Spudis
You Can’t Always Get What You Want (but if you try some time, you might find … you get what you need)
A plan for a human mission to a near Earth object (NEO; an asteroid), designed by engineers from Georgia Tech and the National Institute for Aerospace (GT/NIA), was recently posted online. Keying in on lowering program total costs, this architecture eliminates the need for a new heavy lift launch ...
March 31, 2011 |
By Paul D. Spudis
The Moon’s Role in Climate Science
A recent article about the role of global magnetic fields in the loss of planetary volatiles caught my attention. The article addresses planetary climate issues as they relate to Earth, Mars and Venus, but what struck me was this statement:
We don't have a direct record of the sun's history, but a...
March 22, 2011 |
By Paul D. Spudis
Volcanic Shields of the Moon
Come home with your shield, or on it – Spartan women to their husbands, marching off to war.From the giant Olympus Mons shield on Mars (600 kilometers across and 27 km high) to the large volcanoes of Venus, shield-building was thought to be a common expression of volcanism on all rocky Solar Syste...
March 19, 2011 |
By Paul D. Spudis
Spacewalker in a Telescope
Amazing what you can see in a 10-inch telescope if the conditions are right. Dutch amateur astronomer Ralf Vandebergh got a picture of STS-133 astronaut Steve Bowen spacewalking outside the International Space Station last week.
March 07, 2011 |
By Tony Reichhardt
Discarding Shuttle: The Hidden Cost
On February 15, 2011 a symposium entitled “U.S. Human Spaceflight: Continuity and Stability” was held at Rice University’s James A. Baker Institute of Public Policy. Organized by George Abbey, the resident space expert at the Baker Institute, one might have suspected that it would be Shuttle-centr...
March 01, 2011 |
By Paul D. Spudis
Journey to the Center of the Moon
A recently published science paper presented results of a re-analysis of seismic (moonquake) data sent to the Earth from a network emplaced by the Apollo astronauts 40 years ago. The scientists processing the old data found that the Moon may have more than a simple core – it may have a layered, pa...
February 04, 2011 |
By Paul D. Spudis
Cosmic Milestone: The End of the Line
Hubble has done it again, squinting deeper into the universe, and hence farther back in time, than ever before. What it sees is a little smudge of light that turned out to be the most distant galaxy ever detected, 13.2 billion light-years away. It's not seeable in visible light, only in infrared. T...
January 27, 2011 |
By Mike Klesius
A&S Interview: Roy Tucker
How to discover 467 asteroids in your spare time.
January 2011 |
By Rebecca Maksel
HEFT, Lies and Videotape
A real comedy of errors and misunderstandings collided this week between the new NASA Authorization Act of 2010 and the agency’s Human Exploration Framework Team (HEFT) Congressionally mandated 90-day report (their initial findings on how to implement agency direction). Though flush with the usua...
January 14, 2011 |
By Paul D. Spudis
Regolith, The “Other” Lunar Resource
In civil engineering, one of the most important material resources on Earth is “construction aggregate” – the sand, gravel and cement building materials that make up the infrastructure of modern industrial life. Aggregate is easily one of the biggest, most valuable economic resources of all mined ...
January 05, 2011 |
By Paul D. Spudis
Can we afford to return to the Moon?
We are almost at the end of a year that has seen major changes in our space program. We have in hand a report from a “blue ribbon” Presidential committee that concluded that Project Constellation, the architecture NASA had chosen to implement the Vision for Space Exploration, was not affordable at...
December 21, 2010 |
By Paul D. Spudis
New Light on the Lunar Poles
A new image released this week by the Lunar Reconnaissance Orbiter Camera Team shows the lighting conditions of the south pole of the Moon. This new data supports the conclusions of many previous studies that areas exist on the Moon that are illuminated by the sun for more than one-half the lunar ...
December 17, 2010 |
By Paul D. Spudis
