Space

Let's Make Sure Astronauts Won't Extinguish Native Mars Life- Op Ed

Lisa Pratt, the new planetary protection officer for NASA takes up her job at a challenging time for astrobiology. We are approaching a major decision point for Mars. If Elon Musk succeeds in his ambitious plans, then some time in the next couple of decad ...

Article - Robert Walker - Mar 12 2018 - 12:38am

Let's Make Sure Astronauts Won't Extinguish Native Mars Life- To Jupiter's Callisto, Saturn's Titan And Beyond- Op Ed

Lisa Pratt, the new planetary protection officer for NASA takes up her job at a challenging time for astrobiology. We are approaching a major decision point for Mars. If Elon Musk succeeds in his ambitious plans, then some time in the next couple of decad ...

Article - Robert Walker - Apr 30 2018 - 4:28pm

How To Deal With Trash On Moon? More To It Than You'd Think

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Article - Robert Walker - Mar 18 2018 - 11:18pm

Chasing Evidence Of A Black Hole's Shadow

One of the most fundamental predictions of Einstein's theory of relativity is the existence of black holes. Although gravitational waves from binary black holes have been detected, direct evidence using electromagnetic waves hasn't happened and a ...

Article - News Staff - Apr 17 2018 - 11:05am

Polar Regions Of Mars Of Outstanding Interest For Astrobiology- Why We Haven't Searched For Life There Yet

The reason we know so little about the polar regions is not lack of interest. The polar regions are of great interest, for instance the Martian dry ice geysers in Richardson crater, one of the most interesting dynamic processes on Mars and the polar regio ...

Article - Robert Walker - Apr 30 2018 - 4:09pm

Likely 2040 Before Mars Samples Returned Safely, Legally-Yet Not Likely To Return Life- Needs To Be Detected In Situ First

ESA have just signed a letter of intent to co-operate with NASA on a Mars sample return mission (see Agencies aim to bring back rocks from Mars). I hope this does not mean a change of focus for ESA, from in situ searches, to a sample return. This expensiv ...

Article - Robert Walker - May 27 2018 - 12:17pm

KIC 8462852: Where I Think Evangeline Fits In The System

I've noted the following about a chained orbital resonance system with base period P: If an observer at ~138° from our vantage point is well-positioned to observe transits pass by at intervals that are multiples of P, then we would see transits pass b ...

Blog Post - Jose Solorzano - Apr 29 2018 - 3:33pm

Jupiter Last Friday

Visual observation of the planets of our solar system has always been an appealing pastime for amateur astronomers, but the digital era has taken away a little bit of glamour to this activity. Until 30 years ago you could spot with your eye more detail tha ...

Article - Tommaso Dorigo - Apr 30 2018 - 1:06pm

Protecting Mars- And Earth- From What- And Why Bother? Our Inheritance Of Unopened Astrobiological Treasure Chests

This is a debate hosted by the SETI institute between Robert Zubrin, founder and head of the Mars Society, and one of NASA’s former planetary protection officers, John Rummel. They debate the requirements of the Outer Space Treaty of 1967 to protect both ...

Article - Robert Walker - May 29 2018 - 6:08pm

Will First Mars Astronauts Stay In Orbit- Tele-operating Sterile Rovers- To Protect Earth And Mars From Colliding Biospheres?

Mars is extraordinarily cold and dry, like our most arid deserts. Harsh but possibly not totally lifeless. There is a chance of life there, hidden away perhaps in thin layers of brines just a couple of centimeters below the surface, or as spores within th ...

Article - Robert Walker - Jul 6 2018 - 12:54pm