WHERE DID THE ANTIMATTER GO?
It was destroyed after the Big Bang
Antimatter and matter are supposed to be created in comparable abundance. However, almost all matter observed from Earth seems to be made of matter rather than antimatter. Where did the antimatter go? Antimatter was either destroyed within a second after its creation in the Big Bang, or the Big Bang made antimatter in a distant universe that is far beyond our reach and our visible world happens to be in a matter zone.
The first possibility could be caused by a possible tiny asymmetry between matter and antimatter, and it is being studied by accelerator experiments. The second possibility is being explored by balloon and space-based experiments - a recent famous one is the AMS-02 experiment mounted on the International Space Station. In those experiments, scientists are looking for tiny fragments of primordial antimatter in cosmic rays. Dr Aihong Tang, Brookhaven National Laboratory, New York
WHY DO CRAFT SPEED UP NEAR EARTH?
It may be due to Earth's spin
Possible effects include the atmospheric drag of low-orbit trajectories, ocean and solid tides, charging and magnetic momentum of craft by solar wind, overlooked general relativity phenomena or thermal radiation. Or perhaps it's a strange dark matter halo around Earth. Also perplexing is the phenomena's disappearance in flybys since 2005. Dr Luis Rodríguez Universidad de Extremadura, Spain
CAN LIGHT ESCAPE BLACK HOLES?
Theory says that it can
Denne historien er fra Issue 128-utgaven av All About Space.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
Allerede abonnent ? Logg på
Denne historien er fra Issue 128-utgaven av All About Space.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
Allerede abonnent? Logg på
15 AUTUMN STARGAZING TARGETS
Go on a night-sky treasure hunt as the brighter evenings give way to the cooler months
MYSTERIES OF THE UNIVERSE WHY IS VENUS SO DRY?
A new study reckons the answer lies high in the Venusian atmosphere
WHEN BLACK HOLES TURN WHITE
Can bouncing black holes help physicists find the ultimate theory of everything?
THE MOON'S THIN ATMOSPHERE IS MADE BY CONSTANT METEORITE BOMBARDMENT
While the solar wind also contributes to the atmosphere, meteorites are the main culprit
INTERSTELLAR TRAVEL AND HOW TO BECOME A SPACE TOURIST
Having explored much of the Solar System, attention is now turning to the stars beyond
NASA'S PERSEVERANCE ROVER FINDS POSSIBLE SIGNS OF ANCIENT RED PLANET LIFE
Further analysis is needed, but a rock contains potential evidence that life once existed on Mars in the distant past
A NASA TELESCOPE MAY HAVE FOUND ANTIMATTER ANNIHILATING IN POSSIBLY THE BIGGEST EXPLOSION SINCE THE BIG BANG
The massive explosion was captured in 2022
Jameel Janjua "This is how we get to Mach 3”
Jameel Janjua made it to the bitter end in a Canadian government astronaut selection in 2009, but wasn't chosen. He found a different path to space through Virgin Galactic
BOEING NEEDS TO IMPROVE QUALITY CONTROL ON THE SLS MOON ROCKET
The NASA Inspector General's report finds serious quality-control issues affecting the upgraded version and expects cost overruns and delays
DARK ENERGY
THE MOST DOMINANT FORCE IN THE UNIVERSE IS ALSO ITS MOST MYSTERIOUS AND MOST UNANTICIPATED
