Monthly Archives: March 2018

Voyager 1

Voyager 1 is currently the farthest spacecraft we have ever sent out. It was launched in 1977 and is currently 141 AU or 13 billion miles away from Earth right now. It is traveling at 38,000 mph but has not even travel a full light day yet. The original purpose of the Voyager missions was … Continue reading Voyager 1 Continue reading

Posted in Jovians, Moons, Space Travel | Tagged , , | Comments Off on Voyager 1

Martian Dust Devils

  Martian dust devils are much like tornadoes on Earth. Both storms form the same way, but what distinguishes these dust devils from the tornadoes on Earth is that they are much bigger ( 1-2 km across and 8-10 km wide!) and the fact that dust devils occur much more frequently on Mars than tornadoes … Continue reading Martian Dust Devils Continue reading

Posted in Terrestrials | Tagged , , | Comments Off on Martian Dust Devils

Voyager 2

August 20, 1977. The flyby-type probe Voyager 2 was launched from Earth, destined to explore our Solar System and beyond. Passing by Jupiter, Saturn, Uranus, and Neptune, Voyager 2 carried with it instruments to relay close-up images of these Jovian planets, and a message from Earth to be read and listened to by those who … Continue reading Voyager 2 Continue reading

Posted in Historical, Instruments, Science, Space Travel | Tagged , , | Comments Off on Voyager 2

A Voyager in the Solar System: The Story of the Voyager I and II

Two twins. Exploring where no other spacecraft has ever explored before. This was the goal that NASA set out to accomplish when they launched the Voyager spacecrafts. At least, this is what their missions came to be. However, it is not just the missions themselves that make them famous, but also what they carry for… Continue Reading → Continue reading

Posted in Aliens, Historical | Tagged , , , , | Comments Off on A Voyager in the Solar System: The Story of the Voyager I and II

Fusion vs. Fission

The nuclear energy can be generated in two ways – fusion and fission. Both fusion and fission energy are generated by altering atoms. What is the difference between fusion and fission? And which way will generate more energy? As the word “fission” means separate a thing into different parts, nuclear fission means releases energy by … Continue reading Fusion vs. Fission Continue reading

Posted in Class, Physics | Tagged , | Comments Off on Fusion vs. Fission

Climate Change from the Perspective of Astronomy: Venus and the Earth

Today we hear about climate change pretty often. Whether it’s politicians debating on policy or the “please recycle” signs on the backs of plastic products, the reality of pollution and the other bad ways humans have influenced the environment is hard to ignore. CO2 emissions  and the greenhouse effect are common themes in this topic, […] Continue reading

Posted in Class, Science | Tagged , , , , , | Comments Off on Climate Change from the Perspective of Astronomy: Venus and the Earth

The Death of the Sun

Unfortunately, our Solar System will not exist forever–our Sun’s lifespan is indeed finite. Sunlike stars stay on the main sequence for approximately 10 billions years. In other words, this is about how long the Sun will shine. The Sun is about 4.6 billion years old, so we may expect about 5.4 billion more years of … Continue reading The Death of the Sun Continue reading

Posted in Class, Sun | Tagged , , , | Comments Off on The Death of the Sun

Almost InSight

InSight is short for Interior Exploration using Seismic Investigations, Geodesy and Heat Transport, and is NASA’s next big spacecraft. A little contrived, but its memorable. InSight is a Mars lander designed to study the inside of Mars: the crust, mantle, and core. It does so by measuring the planet’s seismology, heat flow, and precision tracking. … Continue reading Almost InSight Continue reading

Posted in Space Travel | Tagged , , , | Comments Off on Almost InSight

Measuring the Interior of the Earth

It is very hard to drill to the deepest part of the Earth. However, there are some indirect measurements that allow us to know limited information about the interior structure of the Earth. One of those is the measurement of seismic waves. By knowing the characteristic of seismic waves, we are able to identify the properties … Continue reading Measuring the Interior of the Earth Continue reading

Posted in Physics | Tagged , , | Comments Off on Measuring the Interior of the Earth

Nuclear Fusion

Nuclear Fusion refers to the nuclear reaction in which atomic nuclei of low atomic number elements fuse to form a heavier nucleus.  This reactions releases energy and is how the sun and other stars generate light and heat.  Energy is produced during the smashing of the lighter atoms, which is most easily achieved on Earth … Continue reading Nuclear Fusion Continue reading

Posted in Physics, Science | Tagged , , | Comments Off on Nuclear Fusion