Do antimatter and matter behave in the same way under gravity ?

The result is a milestone in the study of the properties and behaviour of #antimatter.

Isaac #Newton's historic work on gravity was apparently inspired by watching an apple fall to the ground from a tree. But what about an “anti-apple” made of antimatter, would it fall in the same way if it existed? According to Albert Einstein’s much-tested theory of general relativity, the modern theory of gravity, antimatter and matter should fall to Earth in the same way. But do they, or are there other long-range forces beyond gravity that affect their free fall?
In a paper published today in Nature, the ALPHA collaboration at CERN’s Antimatter Factory shows that, within the precision of their experiment, atoms of antihydrogen – a positron orbiting an antiproton – fall to #Earth in the same way as their matter equivalents.

“In physics, you don't really know something until you observe it,” says ALPHA spokesperson Jeffrey Hangst. “This is the first direct experiment to actually observe a gravitational effect on the motion of antimatter. It’s a milestone in the study of antimatter, which still mystifies us due to its apparent absence in the Universe.”

[philipstuckey]

Man, I get that negative results are still results, but I'm still a bit disappointed that everything went how we expected it to.

[JoshGulick]

I have been wanting to know the answer to this question for years! Thanks, CERN!

[GalaxyTGW]

can an Anti-element be more stable than its normal counterpart?

[Brunoscaramuzzi]

That antimatter falls is expected, the important question is if antimatter bend spacetime in the other direction. Does antimatter create antigravity!?

[nicolasvasseur]

Congratulations for this video and the experiment

[capjus]

That was difficult to experiment that.. i think nobel prize can come for that

[Nivola]

I’ve just re-watched Dr Lincoln 3 yo video on this experiment expectations. He said that anti-Hydrogen atoms were used to avoid interference by electromagnetic forces, but you said you “…trapped them, using magnetic fields…” At 1:33, I’m sure there is an explanation, I’m just curious about how is that working.

[keremtelanaey]

How do you know that the atom you used in the experiment is antimatter?

[capjus]

Thats a great news, been waiting for decades, was very surprised finally we could do such an experiment to confirm that!!

[juanrodriguezsalazar]

Antimatter factory? Why do you think antimatter is created instead of extracted from his antimatter world (antimatter space-time dimensions)?

[namonef]

Antimatter is just matter with opposite charges & do have mass (and energy). So yeah, antimatter behave as same as matter under gravity.

[anonsurfer]

Might it be incorrect to say that an equivalent amount of anti-matter does not exist? If there's no such thing as a free lunch and if you must pull an equal amount of matter and anti-matter out of the cosmic magician's hat, then instead of saying that anti-matter does not exist, it might be safer to say that anti-matter does not inhabit our region of the universe but exists in the macro-universe, balancing all of the matter that exists in our and other universes.

[daquion]

Maybe antimatter interact with dark matter and creates dark antimatter?

[juangreen]

Great job and congratulations. But was anyone surprised by the result? Antimatter It's just matter with opposite charge IIRC

[mobinmobaseri]

I cannot wait to see why this is the case!

[abdulkhadarainur]

Why did things have to go the way we were expecting them to go?

[faberant]

To actually move to other worlds, people need an analogue of antigravity. Please continue research into defying gravity.

[juanrodriguezsalazar]

❤ In my opinion the thoughts' world is built with antimatter. There, we have ourselfs but can't merged with the matter universe due to annihilation...❤

[Aleksandr]

You are not looking there: gravity is the reactive pull of ordinary electromagnetic waves.

[absolute___zero]

How many time do we have before anti-matter bomb is made?