11/15/99 Norm Herr (sample file)

11/15/99 Norm Herr (sample file)

LIFE ON JUPITER

11/15/99 Norm Herr (sample file)

SOLAR SYSTEM

• The Sun

• Nine Planets

• Sixty-one satellites of the planets

• Many Comets and asteroids

11/15/99 Norm Herr (sample file)

SUN• 75% hydrogen and 25% helium by mass

• Sun converts hydrogen to helium in its core

• Differential rotation

– equator the surface rotates once every 25.4 days

– near the poles it's as much as 36 days

• Core conditions

– temperature is 15.6 million Kelvin

– pressure is 250 billion atmospheres

11/15/99 Norm Herr (sample file)

EARTH

• 3rd from the Sun

• Moon is 1/6 mass of earth

• period of rotation: 24 hours

• period of orbit 365.25 days

Jovian planets

There are four jovian planets.- Massive, lower in density, composed mostly of H, He and H

compounds (water, methane, ammonia)Outer layers contain clouds of gaseous H, He and H compounds.

Deeper the pressure increases and H and He are in liquid formThey have cores of rocks, metals and H compounds in very different

phases from those we know.

11/15/99 Norm Herr (sample file)

JUPITERJUPITER• Jupiter contains over 70% of the mass in

the solar system outside the Sun. • It is about 11 times the radius and 330

times the mass of the earth.• It is the first representative of the outer

solar system.• Unlike the inner planets, Jupiter is not a

solid body, but instead is a ball of gas and liquid (mostly hydrogen and helium).

Jupiter

Storms and lightning on Jupiter = energy for life?

POSSIBILITY OF LIFE:JUPITER

In 1953, the Miller–Urey experiment demonstrated that a combination of lightning and the chemical compounds that existed in the atmosphere of a primordial Earth could form organic compounds (including amino acids) that could serve

as the building blocks of life. The simulated atmosphere included water, methane, ammonia and molecular

hydrogen; all molecules still found in the atmosphere of Jupiter. However, the atmosphere of Jupiter has a strong

vertical air circulation, which would carry these compounds down into the lower regions.

11/15/99 Norm Herr (sample file)

The Miller-Urey experiment

Miller and Urey -Miller-Urey tested the conditions for creating life in which there was an - Atmosphere above warmed sea water that contained H2O,

H2, CH4, and NH3 and

- Electrodes that simulated lightning. - From this setup, they obtained organic compounds such as amino acids that were collected in cooled water.

THE END

THANK YOU

11/15/99 Norm Herr (sample file)