Blog Archives

General Relativity and Black Holes

Stellar-mass black holes are born when the most massive stars in the Cosmos collapse in the raging, brilliant fireworks of a supernova explosion. The supernova marks the end of the very massive star’s life as a main-sequence (hydrogen-burning) star. After such a hole has been born, it can continue to gain weight by devouring its …

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Gravitational Waves

After the late summer storm that blasted through the starlit twilight, the warm wind still continued to rage, causing ripples to form in the lingering puddles on the pavement–while the little girl watched in wonder. Ripples on water are similar to the ripples in the fabric of Spacetime–we call these ripples¬†gravitational waves.¬†Albert Einstein predicted the …

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Albert Einstein vs. Isaac Newton

The name Albert Einstein and Sir Isaac Newton are bywords of many people all through the walks of life. They are considered two of the greatest scientists of all time. Albert Einstein (March 14, 1879- April 15, 1955) was a German physicist. His contributions to Physics started in 1905 that includes: the explanation of the …

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Chandra And X-Ray Astronomy

Have you ever thought about how we know that black holes exist? There are ways, for example we can observe the orbits of celestial objects. If it appears that they aren’t revolving around a planet or a star then you can pretty much bet that they are circling a black hole. Another way is when …

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Flying and Radiation

As a Flight Attendant with an erratic schedule I am always conscious about keeping healthy. The new cry out there by the general public is the use of body scanners that emit radiation doses. What people really don’t know is the health risk that flying itself gives. Flying gives you more radiation exposure than the …

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The Stellar Baby Boom

Sparkling in a wild, frenzied, and joyful dance throughout the vast and mysterious expanse of Space and Time, the stars that we see shining and shimmering in our dark clear sky at night were all mostly born in an explosive stellar “baby boom” that occurred about 10 billion years ago. Galaxies, like our own barred-spiral …

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