Another Take on NASA’s Ability to Maneuver an Asteroid

Posted on by onespaceman2000
Credit: Random House

While everyone is pretty excited about NASA’s ability to nudge a distant asteroid via its Double Asteroid Redirection Test (DART) mission, there is more than one way to look at this event. While many see this as a new tool to protect the Earth from approaching peril, Carl Sagan saw this it more as a double-edged sword.

In his 1994 book Pale Blue Dot: A Vision of the Human Future in Space, Dr. Sagan wrote:

Can we humans be trusted with civilization-threatening technologies? If the chance is almost one in a thousand that much of the human population will be killed by an impact in the next century, isn’t it more likely that asteroid deflection technology will get into the wrong hands in another century—some misanthropic sociopath like a Hitler or a Stalin eager to kill everybody, a megalomaniac lusting after “greatness” and “glory,” a victim of ethnic violence bent on revenge, someone in the grip of unusually severe testosterone poisoning, some religious fanatic hastening the Day of Judgment, or just technicians incompetent or insufficiently vigilant in handling the controls and safeguards? Such people exist. The risks seem far worse than the benefits, the cure worse than the disease.

You might also remember the stealth asteroids directed at Earth by terrorists in the fifth season of the television series The Expanse. Yes, it is science fiction, but so wasn’t the idea of landing humans on the Moon until it was a fact.

As we watch the Middle East burn again, it is not hard to imagine a battle involving sociopaths, ethnic violence victims, leaders with severe testosterone poisoning, religious fanatics, or even incompetent individuals without guardrails making more of a mess of the Earth and its surroundings.

It’s just a thought.

Happy Spring Equinox!

Posted on by onespaceman2000
Credit: Image by Gernot from Pixabay

A Light Exists in Spring

by Emily Dickenson

A Light exists in Spring
Not present on the Year
At any other period –
When March is scarcely here

A Color stands abroad
On Solitary Fields
That Science cannot overtake
But Human Nature feels.

It waits upon the Lawn,
It shows the furthest Tree
Upon the furthest Slope you know
It almost speaks to you.

Then as Horizons step
Or Noons report away
Without the Formula of sound
It passes and we stay —

A quality of loss
Affecting our Content
As Trade had suddenly encroached
Upon a Sacrament

Source: https://allpoetry.com/poem/13630827-A-Light-exists-in-Spring-by-Emily-Dickinson

Posted in Sun

Pic of the Week: Exposed Cranium Nebula

Posted on by onespaceman2000
Image (Credit): Side-by-side view of the Cranium nebula using two instruments on the JWST. You can see more stars and galaxies shining through with the NIRCam’s view, but you get a nice cosmic dust glows with the MIRI’s mid-infrared. (NASA, ESA, CSA, STScI; Image Processing: Joseph DePasquale (STScI))

This week’s images come from the James Webb Space Telescope (JWST). Each image shows a different view of the Cranium nebula depending on the JWST instrument being used. It is also called the “Exposed Cranium” Nebula because it looks like a brain in a see-through skull.

Here is a little more from NASA on what you are seeing above:

The nebula appears to have distinct regions that capture different phases of its evolution — an outer shell of gas that was blown off first and consists mostly of hydrogen, and an inner cloud with more structure that contains a mix of different gases. Both Webb’s NIRCam (Near-Infrared Camera) and MIRI (Mid-Infrared Instrument) show a distinctive dark lane running vertically through the middle of the nebula that defines its brain-like look of left and right hemispheres. Webb’s resolution shows that this lane could be related to an outburst or outflow from the central star, which typically occurs as twin jets burst out in opposite directions. Evidence for this is particularly notable at the top of the nebula in Webb’s MIRI image, where it looks like the inner gas is being ejected outward.

In Case You Missed It: Modern Day Pharaohs Hit a Bump in the Saudi Sand

Posted on by onespaceman2000
Image (Credit): An artist’s rendering of The Line extending for more than 100 miles into Saudi Arabia from the Red Sea..(PetaPixel)

While the Middle East is going through a tough time at the moment, to put it mildly, it may be worth remembering the hubris of the region over the years. For example, Saudi Arabia was planning to build a new city in the desert called Neom that would have included a $500 billion 100-mile horizontal urban “skyscraper” named The Line (shown above). Yes, endless oil riches can lead to such silliness.

Consider it the equivalent of Egypt’s pyramids, another over-the-top public works project. And like the pyramids of old, The Line is now a monument to the dead, or in this case the death of the country’s Vision 2030 plans. After reports of climbing building costs, as well as the deaths of thousands of workers (similar to the pyramids), the whole gargantuan project may be down-scaled to boring data centers. So much for the modern-day pharaohs who are now watching the region go up in smoke.

The Line could have been one more man-made structure to be seen from space, but our alien friends still have plenty to view should they send a probe through the solar system (as some believe they have). While the pyramids can still be seen from space, the best way to be certain our planet is filled with life is to view it from its dark side. The evening light from our towns and cities cover the globe with recognizable patterns.

Image (Credit): North and South America as seen from space. (NASA Goddard Space Flight Center)

Space Stories: Meteor Shakes Ohio, Executive Order Could Impact Pluto, and Musk May Muck Up Space Again

Posted on by onespaceman2000
Image (Credit): Dwarf planet Pluto. (NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute)

Here are some recent space-related stories of interest.

—Fox 8 News: “NASA Confirms Boom was 17,000-pound Meteor“

A loud “boom” was reported across Northeast Ohio just before 9 a.m. on Tuesday. People around Northeast Ohio flooded the FOX 8 newsroom with reports of what heard like a “large explosion” lasting several seconds and causing homes and businesses to “shake.” NASA has confirmed a 6-foot, 17,000-pound meteor traveled 44,000 miles per hour over northeast Ohio. It was 50 miles above Lake Erie when the first flash was detected.

—USA Today: “NASA’s Isaacman Latest to Endorse Trump Reclassifying Pluto as a Planet“

President Donald Trump campaigned on “America first,” but some of his supporters and appointees apparently want Pluto to once again be … ninth. The ninth planet in our solar system, that is. Ever since Pluto was infamously stripped of its planetary status two decades ago, debate has raged for years over the distant icy world – half the size of the United States – and just what sort of cosmic body it should be classified as. Now, Jared Isaacman, NASA’s new chief, has appeared to signal his support for Trump to designate Pluto as a planet once again through executive order.

—Newsweek: “New 1M‑Satellite Plans Could ‘Permanently Scar’ Night Sky, Astronomers Warn“

The Royal Astronomical Society (RAS) has issued a stark warning over proposals by Elon Musk’s SpaceX and the California-based startup Reflect Orbital, saying the plans could cause lasting damage to ground‑based astronomy and dramatically alter the night sky for skywatchers. In comments submitted to U.S. regulators, the RAS said the scale and brightness of the proposed satellite constellations risk overwhelming astronomical observations from Earth. The society, alongside the European Southern Observatory (ESO), has formally opposed both projects in filings to the Federal Communications Commission (FCC), where the companies have sought approval.