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7,719 results
A mystery exists! Galaxies do not seem to have enough mass for stars to orbit at their observed speeds. Galaxies should be flying ...
92,692 views
14 years ago
Gravitational lensing occurs when a huge amount of matter, like a star, galaxy, or cluster of galaxies, creates a powerful ...
35,249 views
3 years ago
It has been 90 years since the concept of dark matter was introduced in astronomy. It lies at the heart of the most successful ...
1,045,379 views
1 year ago
Professor Richard Ellis has written an article entitled "Gravitational Lensing: An Unique Probe of Dark Matter and Dark Energy" for ...
763 views
9 years ago
Today on Crash Course Astronomy, Phil dives into some very dark matters. The stuff we can actually observe in the universe isn't ...
1,757,424 views
8 years ago
Talk title: Probing Dark Matter and Dark Energy with Strong Gravitational Lensing Speaker: Simon Birrer Talk abstract: Evidence ...
199 views
2 years ago
Dear Friends, Any body who is following astrophysics would have heard about the name Dark Matter. It is a misleading name.
44,080 views
Watch Simon Birrer from UCLA talk about probing Dark Matter with strong gravitational lensing at the fourth edition of the DaMaSC ...
1,005 views
4 years ago
Irwin I. Shapiro (1964). "Fourth Test of General Relativity". Physical Review Letters. 13 (26): 789–791.
4,899,052 views
Quantum mechanics is our best theory of the fundamental nature of reality, but it's usually only distinguishable from familiar ...
434,411 views
11 months ago
We're so excited to be able to share our exams with you! Cheers, Mitch.
2,004 views
11 years ago
Hey team! LINK TO PART 2: https://youtu.be/Mpd4KTsp4wA This is a cool website I found that lets you play with galaxy rotation ...
1,130 views
In a long line of intellectual triumphs, Einstein's theory of general relativity was his greatest and most imaginative. It tells us that ...
89,896 views
Niels Bohr, a Danish Physicist said “Everything we call real is made of things that cannot be regarded .” Is what we see perceived ...
922,519 views
Dark matter fills 95% of our Milky Way and yet we cant see it, but how do we know? This video examines two key evidences for ...
2,181 views
In this video you will learn about the phenomenon of Gravitational lensing, the factor that causes it and its application in mapping ...
72 views
Gravity is one of the four fundamental forces of nature in the Universe. But of the four forces of nature, it stands alone as different.
2,064,311 views
Introducing Galaxy Clusters, and how observations of the Bullet Cluster are important to our understanding of Dark Matter.
2,953 views
Astrophysicist Alexie Leauthaud investigates Dark Matter with gravitational lensing. See her talk with Reiko Nakajima at Lawrence ...
2,500 views
15 years ago
What if there is no such thing as dark matter? What if our understanding of gravity is just wrong? New work is taking another shot ...
2,357,213 views