ScienceIQ.com

Ancient Planet in a Globular Cluster Core

Long before our Sun and Earth ever existed, a Jupiter-sized planet formed around a sun-like star. Now, 13 billion years later, NASA's Hubble Space Telescope has precisely measured the mass of this farthest and oldest known planet. The ancient planet has had a remarkable history because it has wound up in an unlikely, rough neighborhood. It orbits a ...

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GlobularClusterCore
Mathematics

How To Calculate The Area Of A Circle

A circle is the round counterpart of a square. To find the area of a square, one multiplies the length by the width. A circle doesn't have these, however, so there has to be a different way to ... Continue reading

AreaOfACircle
Biology

Grizzly Bear, (Ursus arctos horribilis)

A symbol of America's wildlands, the grizzly or brown bear is one of the largest North American land mammals. The grizzly bear's historic range covered much of North America from the mid-plains ... Continue reading

GrizzlyBear
Medicine

What Is a Bruise?

A bruise is a deposit of blood under the skin. It flows from tiny capillaries that break when you bump your shin on the furniture or take the batter's pop fly in the eye. The injury starts out looking ... Continue reading

WhatIsaBruise
Geology

What is Haze?

Haze is caused when sunlight encounters tiny pollution particles in the air. Some light is absorbed by particles. Other light is scattered away before it reaches an observer. More pollutants mean more ... Continue reading

Haze

Cloning and Ethics

CloningandEthicsCloning technology today is far from perfect: it requires many attempts and only 1%, if any, of the cloned eggs become embryos and then survive. For example, the first cloned sheep, Dolly, was successful after 277 attempts. That means that with the current technology, cloning a human being would require the death of many embryos - a moral issue not easy to deal with. Some say that embryos are not fully human, so there is no moral problem; others say it is obvious they are human, since all their genetic information is already present in the embryo.

The humanness of the embryo is not the only issue of debate in human cloning. Although there are good reasons to clone animals (for example, to preserve species and valuable genomes), are there any good reasons to clone a human? Defenders of human cloning say good reasons to clone a child would be to continue a family line when a couple is infertile (an adopted child would not carry their genes), to produce organs that are needed for transplants and trigger the development of new medical treatments. Critics of human cloning say it rises legal (if you have two humans with identical DNA, how do you determine guilt or innocence in criminal cases based on DNA evidence) and religious problems (cloning is considered by many religions as unnatural, evil, ‘not God’s way of reproduction’).

Bioethicists point out that the common fear about clones, that a clone of Hitler would be as bad as he was, is a myth without scientific basis, and we should weigh the risks of human cloning against its benefits. A good question is, if cloning becomes safe, should we do it?