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From the name, a reflection nebula is an interstellar cloud of dust particles that reflect light from a nearby star. This means that as opposed to an emission nebula that gives off various colors, a reflection nebula is unable to give off its own light, but has to rely solely on the light given off […]
The Sun, Moon, stars and other celestial objects are beyond the reach of any instrument that can be used by observers here on Earth. Measuring the distance of a celestial object from the Earth might seem to be complicated. But measuring the distance of these remote entities have been simplified by the concept of parallax.
Polycyclic Aromatic Hydrocarbons (PAHs) are probably one of the most complicated names in chemistry. But despite the difficulty encountered with this term, these PAHs are common in our daily experience and are present as pollutants produced by the burning of fuels like oil and coal. In addition, PAHs can be found in our closets in
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Astronomical objects are very far and located in space that may be way beyond our imagination. We can only view stars from afar and often think about how far they really are from Earth. Despite the lack of possibilities of measuring these astronomical bodies up-close, astronomers and astrophysicists have devised a way to determine how
Comets are spectacular sights in the night sky. Despite their burning appearance, comets are actually made of ice, small rock particles, and dust. But comets, unlike meteors, are rarely seen in the night sky. Comets have different orbital periods, which can range from several years to hundreds of thousand years. Comets are classified according to
The night sky is illuminated by billions and billions of stars found in the Milky Way galaxy. Other celestial objects become very brilliant because of the presence of the Sun, which allows celestial bodies like the Moon look very bright in the dark skies. Light is our only guide to seeing the stunning brilliance of
The sky is constantly illuminated by stars and other bright astronomical objects. Without the light emitted by the stars, particularly by the Sun, our world will become pitch dark and our visions will be impaired. With these celestial bodies continuously emitting electromagnetic radiation, we can see the world in a more vivid perspective. Astronomers use
Infrared in astronomy is an important branch of the science which uses infrared radiation or heat energy to detect and study stars, galaxies and other celestial bodies. A relatively new field, it has contributed a lot to current astronomical knowledge.
When someone mentions astronomy, what often comes to mind are planets and stars seen through a telescope. Astronomy is indeed the study of heavenly bodies, but it need not be with the use of telescopes and sophisticated instruments. Astronomy can also be studied using just the naked eye, and this was how the early pioneers
In astronomy, the term occultation means the obscuration or obstruction of light, usually that of a star, by another celestial body that can either be a planet or satellite. This is also defined as the general term for the words eclipse or transits.
