Unexpected Trajectory of an Interstellar Asteroid ‘Oumuamua
Image Credit: NASA, JPL, Caltech Explanation: Why is 'Oumuamua differing from its expected trajectory? Last year, 1I/2017 U1 'Oumuamua became the first known asteroid from interstellar space to pass through our Solar System. Just over a year ago, this tumbling interstellar rock even passed rather close to the Earth. The asteroid's future path should have been easy to predict given standard gravity
LL Ori and the Orion Nebula
LL Ori and the Orion Nebula Image Credit: NASA, ESA, and The Hubble Heritage TeamExplanation: Stars can make waves in the Orion Nebula's sea of gas and dust. This esthetic close-up of cosmic clouds and stellar winds features LL Orionis, interacting with the Orion Nebula flow. Adrift in Orion's stellar nursery and still in its formative years, variable star LL Orionis produces a wind more energetic than the
Rotating Asteroid Bennu from OSIRIS-REx
Explanation: Could this close-by asteroid ever hit the Earth? Eventually yes -- but probably not for a very long time, even though the asteroid is expected to pass inside the orbit of the Moon next century. However, to better understand the nature and orbit of all near-Earth asteroids, NASA sent the robotic Origins, Spectral Interpretation, Resource Identification,
NGC 1672: Barred Spiral Galaxy from Hubble
Explanation: Many spiral galaxies have bars across their centers. Even our own Milky Way Galaxy is thought to have a modest central bar. Prominently barred spiral galaxy NGC 1672, featured here, was captured in spectacular detail in an image taken by the orbiting Hubble Space Telescope. Visible are dark filamentary dust lanes, young clusters of bright blue stars, red emission nebulas of glowing
Mars in the Loop
Mars in the Loop Image Credit & Copyright: Tunc Tezel (TWAN)Explanation: This composite of images spaced some 5 to 9 days apart, from late April (bottom right) through November 5 (top left), traces the retrograde motion of ruddy-colored Mars through planet Earth's night sky. To connect the dots and dates in this 2018 Mars retrograde loop, just slide your cursor over
Retrograde Orbits
(note: This animation has no audio track.) - The Open University Although many moons in the Solar System follow prograde orbits, there are some notable exceptions. The gas giant planets Jupiter, Saturn, Uranus and Neptune have several small outer moons that follow retrograde orbits; this means that they orbit their planet in the opposite direction
Pentestit Lab v10 – The Site Token
In my previous post “Pentestit Lab v10 - The Mail Token”, we attained usernames through Intelligence Gathering, brute forced the SMTP Service, attained login credentials, and scored our first token. Today we will take our first steps at compromising the Global Data Security website - which will include the following: Mapping the Attack Surface
The Anatomy of a Web Application – SQL Injection
A web application is the target of a SQL injection attack, so you must understand how these apps work. A web app can be described simply as an application that is accessed through a web browser or application (such as the apps on a smartphone). However, we need to be a little more
All that is SQL Injection
Introducing SQL Injection SQL injection has been around for at least 20 years, but it is no less powerful or dangerous than any other attack we have covered so far. It is designed to exploit flaws in a website or web application. The attack works by inserting code into an existing line of code prior
Seeing things sideways
This image from Hubble’s Wide Field Camera 3 (WFC3) shows NGC 1448, a spiral galaxy located about 50 million light-years from Earth in the little-known constellation of Horologium (The Pendulum Clock). We tend to think of spiral galaxies as massive and roughly circular celestial bodies, so this glittering oval does not immediately appear