Randall Boyd Planetarium

Randall Boyd Planetarium Our mission is to promote cosmology, astrophysics, astrobiology and planetary science. We hope all visitors will depart with a sense of awe and wonder!

The Drake Equation - A Covid 19 Reflection: Founded by Cornell astronomer Frank Drake still prevails as the best mathema...
05/03/2020

The Drake Equation - A Covid 19 Reflection: Founded by Cornell astronomer Frank Drake still prevails as the best mathematical model to calculate the probability of technological civilizations in the galaxy represented by "N". In a nutshell, N is constrained by the terms of the equation including rate of star formation, number of planets,habitability, complex life, intelligence and the rise of technology.
However, what is of particular importance is the value for "L", the last term of the equation representing the survival probability of a technological civilization. For example, in the case of Earth mass extinction events were
driven by external forces e.g. bolloid impacts e.g. the K-Pg event that destroyed > 70% of terrestrial life including the dinosaurs 66 million year ago, and imminent events on larger time scales e.g. the longevity of its host star on the order of billions of years. Conversely, extinction events are also caused by internal variables e.g. the climatically driven Permian extinction resulting in a 90% extinction 250 million years ago However, is a technological civilization, as the outcome of billions of years of evolution, left to the arbitrary whims of natural forces?
This begs the question: How much control does a technological civilization have over its own fate? Consider the Kardashev scale that rates civilizations based upon energy consumption. The earth is 0.7 below 1 that defines a full planetary civilization;,2 is interstellar ( e.g. a popular movie withthe same title),and 3 galactic ( not far removed from Star Wars!) Speculation by futurists e.g. physicist Michio Kaku optimistically predict that we are destined to achieve level 1 and beyond as we become more globally interconnected and gain more control over the terrestrial environment e.g weather and radiate into parts of the solar system ( This radiation is also predicted by my Janus hypothesis available on-line under "exobiospheres").
This begets the next question: What are the obstacles? Will we, as new
technological species survive ( in the words of astronomer Carl Sagan)
"technological adolescents?" Indeed, we nearly undermined the value of "L" during the Cold War and the nuclear arms races culminating with the Cuban Missile Crisis when for a moment our civilization teetered on self-destruction. Global pandemics e.g. the "Spanish Flu of 1918" that infected 500 million (nearly 1/3 of the global population at the time including a staggering fatality rate of 5%! And of course, the Covid-19 pandemic infecting nearly 2 million globally. An achievement of a 1 on the Kardachev scale ( and beyond) will be driven by advances in science and technology. However, our present state of paranoia amplified by conspiracy theories including hoaxes interlaced with divisive politics not only pushes our civilization backwards. but threatens our very survival. This dysfunctional culture is a breeding ground for destructive forces including pandemics, climate catastrophes, terrorism and wars.This brings forth yet another question: What have we learned from our mistakes? Indeed we do possess the potential to extend the value of "L" in the Drake equation. In fact, Carl Sagan pondered the vale of L for a civilization at one million years! Our value is but 10,000 years marked by the rise of agriculture . Competitively speaking we have barely taken the first baby step technologically. Final question: Will we take the next baby step? Natural forces aside, the value of L i.e. our fate rests in our own hands.

A MONUMENTAL MOMENT FOR HUMAN KIND!  And Christmas in April forour astrophysics community! This is the first actual imag...
04/12/2019

A MONUMENTAL MOMENT FOR HUMAN KIND! And Christmas in April for
our astrophysics community! This is the first actual image of a black hole
i.e. not an artist's rendition or numerical model! Considered the most
mathematically perfect object in the universe, this monster is located
at the center of the M87 galaxy at a distance of 53 million light years.
( In other words, this is the way it appeared only a few million years after
the dinosaurs went extinct!) It's diameter is 20 billion miles ( 4x the diameter
of the solar system) and 6 billion solar masses. As this is a galactic mass
black hole, they come in a variety of flavors e.g. stellar mass, "baby" black
holes, classic,Kerr ( or rotating) just to name a few. This digitally constructed
image is a product of the Event Horizon Telescope. The ring to light is the
referred to as the "photon orbit" located in the ergosphere just outside
the event horizon ( beneath which light cannot escape). The singularity,
the point at which spacetime collapses to zero volume and infinite density
is located at the dead center. ( Wrap your mind around that one!) Predicted
by the field equations of Einstein's theory of general relativity, black holes
were actually first conceived by physicist John Michele in the late 18th century
then revived by mathematician Karl Schwartzchild at the beginning of
the 20th century. Black holes would again have a renaissance during the
1960s thanks to the work of physicists Roy Kerr and John Archibald Wheeler,
the latter of whom coined the term "black hole".

12/24/2018

Found on Google from telegraph.co.uk

11/18/2018

Scientists in Hawaii have detected the first object to enter our solar system from the outside. Experts say its more likely to be a natural object we're never encountered rather than something deliberately sent by another life form. 

08/14/2018

Rio 2.0: revising the Rio scale for SETI detections - Duncan Forgan, Jason Wright, Jill Tarter, Eric Korpela, Andrew Siemion, Iván Almár, Elisabeth Piotelat

08/01/2018

By searching for the telltale, periodic dimming of light from distant stars, astronomers can spot orbiting exoplanets tens to hundreds of light-years away. But how do they know what these bodies look like? Perhaps they first try to imagine how the planets in our own Solar System might appear to a fa...

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