InSight Mission To Mars

A wonderful milky way over the Australia

New Video! Reflection nebulae in a nutshell! Follow Evant Horizon for more astronomy posts!

First time shooting the Perseid meteor shower. Definitely doing this again and I’ll try to get the Geminids in December as well. Finally edited and put these pictures together. This one turned out pretty good I think, I also have some more on my flickr account with better quality. There’s about 40 meteors here, captured from both nights and combined into one. Was up on Mt. Lemmon for both nights and started shooting from midnight to about 4am.

Space Launch System

Our Space Launch System (SLS) is an advanced launch vehicle for exploration beyond Earth’s orbit into deep space. SLS, the world’s most powerful rocket, will launch astronauts in our Orion spacecraft on missions to an asteroid and eventually to Mars!

A launch system required to carry humans faster and farther than ever before will need a powerful engine, aka the RS-25 engine. This engine makes a modern race car or jet engine look like a wind-up toy. With the ability to produce 512,000 pounds of trust, the RS-25 engine will produce 10% more thrust than the Saturn V rockets that launched astronauts on journeys to the moon!

Another consideration for using these engines for future spaceflight was that 16 of them already existed from the shuttle program. Using a high-performance engine that already existed gave us a considerable boost in developing its next rocket for space exploration.

Once ready, four RS-25 engines will power the core stage of our SLS into deep space and Mars.

Hubble Peers into the Heart of a Galactic Maelstrom

This NASA/ESA Hubble Space Telescope image shows Messier 96, a spiral galaxy just over 35 million light-years away in the constellation of Leo (The Lion). It is the nearest group containing both bright spirals and a bright elliptical galaxy (Messier 105).

September 04, 2015

Northern lights (by Teemu Lautamies)

Saturn, Tethys, Rings, and Shadows

Dust Band Around the Nucleus of “Black Eye Galaxy” M64

Disclaimer: These are online resources that I have found, They are not meant to be your only source of study, instead you can use them to your enhance your normal study. I don’t know what level these resources are aimed at, but I’ve tried to provide a range for a number of different topics. I don’t study Physics, so I don’t know how accurate these are, or how they relate to course syllabi.

Space & the universe:

How do we know the Big Bang actually happened?

Visible Earth - A catalogue of satellite images of our home planet detailing everything from atmospheric data to city lights or natural disasters.

NASA - NASA homepage with links to other NASA sites. FAQ

British National Space Centre - Site containing information about current satellites launches, solar system and Earth observation. There are links from the ‘Learning Zone’ to other Space sites.

Online Physics Lecture Notes - A directory of online undergraduate level astronomy and physics lecture notes from various universities.

Physics in Perspective: 2013 lectures - Video: Dr Andreas Freise talks about finding black holes with lasers.

Galileo: An educational film - An educational film dramatising the life of Galileo and his scientific discoveries.

Why our universe might exist on a knife-edge

Is our universe the only universe?

Distant time and the hint of a multiverse

The hunt for a supermassive black hole

The story behind the Mars Rovers

The design of the universe

Shedding light on dark matter

Why did Pluto get kicked out of the planet club?

Geocentrism and heliocentrism

Newton’s Law of Universal Gravitation

An overview of orbital mechanics

Orbital mechanics -  These drawings simplify the physics of orbital mechanics, making it easy to grasp some of the basic concepts.

Gravity is More Than a Name

Circular and Satellite Motion Interactives

Vectors, Motion & Momentum

Vectors - Motion and Forces in Two Dimensions

Vectors, Projectiles, and 2-D Motion Interactives

One dimensional motion - velocity, speed, time, acceleration, projectiles.

Two dimensional motion - projectile velocity, inclines, centripetal force and acceleration.

Introduction to vectors and scalars - Khan Academy  (YouTube)

Physics: Introduction to Vectors (YouTube)

Momentum and Its Conservation

Momentum and Collisions Interactives

1-D Kinematics Interactives

The simple pendulum - Excellent animations proving assorted points about the simple harmonic motion approximation for pendulums.

The Physics of Body Mechanics

Momentum and forces (BBC Bitesize)

Forces and Newton’s laws

Impacts and linear momentum

Moments, torque and angular momentum

Oscillatory motion

Work & Energy:

Work, Energy, and Power

Work and Energy Interactives

Introduction to work and energy - Khan Academy

SparkNotes: SAT Physics: Work, Energy, and Power

Thermal Physics:

Thermal Physics

Thermodynamics

SparkNotes: SAT Physics: Thermal Physics

Thermal Physics - Heat and Temperature (YouTube)

Electricity & Magneticism:

Static Electricity

Static Electricity Interactives

The Electromagnetic Spectrum Song by Emerson & Wong

Electromagnetic Spectrum - Introduction

Electricity and magneticism (Khan academy)

Current Electricity

Magnetism Interactives

Direct Current Versus Alternating Current

Circuits

Circuit symbols review notes

Circuit components overview

Resistors in Circuits

Batteries in Circuits

Capacitors in Circuits

Online circuit lab

Electric Current

Electric Resistance

Electric Power

Light & Sound:

Waves

Waves and Sound Interactives

Sound Waves and Music

Mechanical waves and sound

Light Waves and Color

Light waves

Reflection and the Ray Model of Light

Refraction and Lenses Interactives

Refraction and the Ray Model of Light

Circles of light: the mathematics of rainbows - An in-depth study of the mathematics involved in the study of rainbows. For advanced students only.

The Discovery Of Radioactivity - 100 years ago, a group of scientists unknowingly ushered in the Atomic Age. Their work initiated paths of research which changed our understanding of the building blocks of matter.

Light: Particle or a Wave?

Refraction of Light

Diffraction of Light

Sources of Visible Light

Laser Fundamentals

Prisms and Beamsplitters

What is the speed of dark? Vsauce. YouTube (2014).

Primary Colors

Diffraction of Light

Atoms:

The Discovery and Research on the Atom - A description of some of the important developments in understanding the atom an its constituents. Some parts of the site are very mathematical and go beyond college level physics.

Large Hadron Collider finds elusive new particle after 50 years

Building atoms

Revise atom structure (S-cool, intro level)

Build an atom - Move the electrons, protons and neutrons yourself to create different atoms.

Definitions & Tools:

Torques - Definitions of various torques, statements of Euler’s equations.

Elasticity - Definitions for a selection of topics related to elasticity.

Forces - Glossary of terms and mathematical derivations for various forces.

Friction - A few good definitions relating to friction.

Mass and Weight - Brief definitions for various mass and weight related topics.

A Dictionary of Units of Measurement - The history and conversion of different numeric systems

Physics Forums - A busy forum covering every physics topic under the sun. Great for everything from homework questions to discussing the origins of the universe.

The Laws List - The Laws List is an alphabetised guide featuring several hundred laws, rules, principles and other related topics in physics, from aberration to the Zeeman effect.

Astro Physical Calculator - A fully working physical calculator with physical constants stored in memory.

Other:

Introduction to MRI physics - A detailed page on the workings of mri scanners with lots of animations (requires shockwave).

How Does a Cat Land on its Feet? - The saying is that cats always land on their feet. This animation explains how they do this.

X‑rays

What physics taught me about marketing

Physics Timeline

Careers:

Careers in physics

What can I do with my degree in physics?

Careers In Physics - American Physical Society

Important Dates and Discoveries - The Physics of the Universe

The International Space Station above the spinning Earth.

Photo credit: NASA