In this video I'll show you sounds from 7 Neutron Stars and these sounds are not fake they're real sounds but the different is the frequency isn't audible by humans and it's very far from the range which human ears can detect but they(NASA, Chandra X-ray Observatory etc.) shifted the frequency to make it audible and please do not make funny comments. LOL.

Explore the Universe before and after the birth of stars and study the extraordinary process of star formation.

Stars can necessarily be observed only at a distance. This unit introduces the Hertzsprung-Russell diagram, an essential tool in understanding the nature of stars. You should have some understanding of the basic stellar properties of luminosity and temperature in order to get the most from the unit.

This 8-minute video lesson looks at the birth of stars. [Cosmology and Astronomy playlist: Lesson 16 of 85]

This 9-minute video lesson looks at Cepheid Variables. [Cosmology and Astronomy playlist: Lesson 31 of 85]

This 7-minute video lesson looks at the lifecycle of massive stars (stars with masses greater than 9 times the sun). [Cosmology and Astronomy playlist: Lesson 27 of 85]

This 7-minute video lesson explains what parallax is and how it is used to determine distances between stars. [Cosmology and Astronomy playlist: Lesson 21 of 85]

This 8-minute video lesson examines the scale of distance from the solar system to the closest stars. [Cosmology and Astronomy playlist: Lesson 3 of 85]

This 7-minute video lesson looks at images of star fields and nebulas. [Cosmology and Astronomy playlist: Lesson 20 of 85]

This 12-minute video lesson looks at how to measure stellar distance using parallax. [Cosmology and Astronomy playlist: Lesson 23 of 85]

This 9-minute video lesson provides another introduction to stellar parallax. [Cosmology and Astronomy playlist: Lesson 22 of 85]

This 2-minute video lesson provides clarification on parallax. [Cosmology and Astronomy playlist: Lesson 24 of 85]

This 2-minute video lesson provides a clarification about supernovae. [Cosmology and Astronomy playlist: Lesson 29 of 85]

This 7-minute video lesson explains why cepheids pulsate. [Cosmology and Astronomy playlist: Lesson 32 of 85]

This video lesson has the goal of introducing students to galaxies as large collections of gravitationally bound stars. It explores the amount of matter needed for a star to remain bound and then brings in the idea of Dark Matter, a new kind of matter that does not interact with light. It is best if students have had some high school level mechanics, ideally Newton's laws, orbital motion and centripetal force. The teacher guide segment has a derivation of centripetal acceleration. This lesson should be mostly accessible to students with no physics background. The video portion of this lesson runs about 30 minutes, and the questions and demonstrations will give a total activity time of about an hour if the materials are all at hand and the students work quickly. However, 1 1/2 hours is a more comfortable amount of time. There are several demonstrations that can be carried out using string, ten or so balls of a few inches in diameter, a stopwatch or clock with a sweep second hand and some tape. The demonstrations are best done outside, but can also be carried out in a gymnasium or other large room. If the materials or space are not available, there are videos of the demonstrations in the module and these may be used.

Background for and techniques of visual observation, electronic imaging, and spectroscopy of the Moon, planets, satellites, stars, and brighter deep-space objects. Weekly outdoor observing sessions using 8-inch diameter telescopes when weather permits. Indoor sessions introduce needed skills. Introduction to contemporary observational astronomy including astronomical computing, image and data processing, and how astronomers work. Student must maintain a careful and complete written log which is graded. In this seminar we explore the background and techniques of visual observation and imaging of the Moon, planets, and brighter deep-space objects using 8-inch telescopes. (Some sample images appear in our "photo album".) Telescope work begins with visual observing, then we advance to CCD (charge-coupled device) cameras. Each class observing session meets one evening a week. Whenever weather conditions permit us to observe outdoors we do so! In cloudy weather we'll try some astronomical computing and image processing indoors instead. Either way, virtually all the work for the seminar is done during the evening sessions, so students must attend section every week in order to pass. Past experience has been that if you're really enthusiastic about hands-on out-under-the-sky astronomy, enough to be willing to deal with dressing warmly, tinkering with equipment, and committing one evening a week, 12.409 is great fun! One student wrote, "Unlike most seminars, you will earn your units and, unlike most other MIT courses, you will look forward to doing it!" But we'll be direct: 12.409 is not for everyone, and in past years many whose interest was merely casual found themselves unwilling to devote one entire evening every week to the class. If your interest is only casual then consider whether a more typical astronomy survey subject might be a better choice, since it'll have more outside preparation time that you can rearrange at your discretion and less in-class time that you can't.

Light pollution affects the visibility of stars. Building a simple Magnitude Reader, students determine the magnitude of stars and learn about limiting magnitude.

This course includes Quantitative introduction to physics of the solar system, stars, interstellar medium, the Galaxy, and Universe, as determined from a variety of astronomical observations and models. Topics: planets, planet formation; stars, the Sun, "normal" stars, star formation; stellar evolution, supernovae, compact objects (white dwarfs, neutron stars, and black holes), plusars, binary X-ray sources; star clusters, globular and open clusters; interstellar medium, gas, dust, magnetic fields, cosmic rays; distance ladder; galaxies, normal and active galaxies, jets; gravitational lensing; large scaling structure; Newtonian cosmology, dynamical expansion and thermal history of the Universe; cosmic microwave background radiation; big-bang nucleosynthesis. No prior knowledge of astronomy necessary. Not usable as a restricted elective by physics majors.

Explains how we believe stars are born, live and die and the different ends to different sized stars.

Applications of physics (Newtonian, statistical, and quantum mechanics) to fundamental processes that occur in celestial objects. Includes main-sequence stars, collapsed stars (white dwarfs, neutron stars, and black holes), pulsars, supernovae, the interstellar medium, galaxies, and as time permits, active galaxies, quasars, and cosmology. Observational data discussed. No prior knowledge of astronomy is required.