Awarenergy @awarenergy.bsky.social · 23hOur Sun is 109 times wider than the Earth, and has a volume 1.3 million times that of our planet 000
Awarenergy @awarenergy.bsky.social · 30/09/2026Andromeda has approximately twice the Milky Way's stellar mass 000
Awarenergy @awarenergy.bsky.social · 29/09/2026Cepheid variable stars change their brightness with a well-defined period that is directly proportional to their luminosity, a property that makes these giant stars a useful tool to measure galactic and extragalactic distances 000
Awarenergy @awarenergy.bsky.social · 28/09/2026The uncertainty in a particle’s position multiplied by the uncertainty in its momentum can never be smaller than a constant, which means that nature does not allow a particle to have both an exactly defined position and an exactly defined momentum at the same time 000
Awarenergy @awarenergy.bsky.social · 27/09/2026Space and time are not directly observable entities. We see objects, events, and changes, and we measure the relationships between them. Space is inferred from the relative positions and distances between things; time is inferred from the ordering and rates of change of events 000
Awarenergy @awarenergy.bsky.social · 26/09/2026The asteroid belt between the orbits of Mars and Jupiter contains around 2 million asteroids bigger than 1 km in diameter 011
Awarenergy @awarenergy.bsky.social · 25/09/2026The first atoms in the Universe were formed when the Universe was 380,000 years old and about 1,100 times smaller than the size of the present observable Universe 000
Awarenergy @awarenergy.bsky.social · 24/09/2026Our Solar System is orbiting the centre of the Milky Way at an average speed of 828,000 km/h. At that speed, an object would circumnavigate the Earth's equator in 2 minutes and 54 seconds 000
Awarenergy @awarenergy.bsky.social · 23/09/2026Neptune’s largest moon, Triton, is about 140 times more massive than all of Neptune's other 13 known moons combined. It contains roughly 99.3% of the total mass of Neptune's moons 000
Awarenergy @awarenergy.bsky.social · 21/09/2026Gravity is the only fundamental force that operates at infinite range and affects all things with mass irrespective of size, shape, or electric charge. We know what it does, but we are not sure what it is 000
Awarenergy @awarenergy.bsky.social · 20/09/2026The diameter of the Milky Way is approximately 100 thousand light-years, or about 25 thousand times the distance between the Sun and Proxima Centauri, the nearest star to us 001
Awarenergy @awarenergy.bsky.social · 19/09/2026The Sun's magnetic poles reverse polarity approximately every 11 years 000
Awarenergy @awarenergy.bsky.social · 18/09/2026The term “Big Bang” to describe the origin of the Universe was coined by English astronomer Fred Hoyle on a BBC radio program in 1949 000
Awarenergy @awarenergy.bsky.social · 17/09/2026Saturn’s largest moon Titan, and the second largest in our Solar System, is the most distant object on which a spacecraft has landed: Huygens in 2005, built and operated by the European Space Agency 001
Awarenergy @awarenergy.bsky.social · 16/09/2026In the Standard Model, fundamental particles are treated as point-like: they don't have a known physical radius, hard surface, or size 000
Awarenergy @awarenergy.bsky.social · 15/09/2026A spacecraft travelling from Earth at 50,000 km/h would take 8 hours to get to the Moon, 65 days to Mars, 13 years to Pluto, and 94,000 years to the closest star, Proxima Centauri 000
Awarenergy @awarenergy.bsky.social · 14/09/2026If an astronomical body is emitting or reflecting light that we can observe, we can determine how fast it is moving toward or away from us by comparing where the spectral lines of its constituent elements should be when the source is at rest with where we actually observe them 000
Awarenergy @awarenergy.bsky.social · 13/09/2026The Trifid Nebula is a star-forming region in the Milky Way. The main cloud of gas in its central region is about 8 light-years across, and the jets protruding from the head of the cloud are about 0.75 light-years long, or 48 thousand times the distance between Earth and the Sun 000
Awarenergy @awarenergy.bsky.social · 13/09/2026Nuclear fusion in the Sun produces only electron neutrinos, but on the way to the Earth, they can change their type to become muon or tau neutrinos in a quantum mechanical process called neutrino oscillations, which was predicted in 1957 and experimentally confirmed in 2001 010
Awarenergy @awarenergy.bsky.social · 11/09/2026The winds on Neptune blow mostly in a retrograde direction, opposite the planet's rotation, reaching supersonic speeds of up to 2200 km/h 000
Awarenergy @awarenergy.bsky.social · 10/09/2026The Sun is about 26,000–27,000 light-years from the galactic centre. It travels around the centre at roughly 230 km/s (about 830,000 km/h). One complete orbit takes approximately 225–250 million years 000
Awarenergy @awarenergy.bsky.social · 09/09/2026In billions of years, when our Sun runs out of Hydrogen to fuse and becomes a red giant engulfing Earth and killing all life on our planet, perhaps Saturn’s largest moon Titan, might be warm enough to sustain life 000
Awarenergy @awarenergy.bsky.social · 08/09/2026Due to the accelerating expansion of the Universe, the edge of the observable Universe is about 47 billion light-years away from us, even though the age of the universe is only 13.8 billion years 001
Awarenergy @awarenergy.bsky.social · 07/09/2026The dark-matter halo that our galaxy is embedded in is believed to contain several times more mass than all the ordinary matter in the Milky Way combined 000
Awarenergy @awarenergy.bsky.social · 06/09/2026Due to the tidal interaction between the Earth and the Moon, the Moon is moving away from the Earth at a rate of about 4 centimetres per year, which means that in a few hundred million years, the Moon will be too small in the sky for total solar eclipses to be possible 000
Awarenergy @awarenergy.bsky.social · 06/09/2026The spacetime interval between two events is the same for all inertial observers. Space and time are observer-dependent, but spacetime has an observer-independent geometry 000
Awarenergy @awarenergy.bsky.social · 05/09/2026Saturn has 293 known moons, many more than any other planet in our Solar System 000
Awarenergy @awarenergy.bsky.social · 05/09/2026The Cosmic Microwave Background is the oldest light we can still observe from Earth, a visible surface surrounding us, beyond which light from the early universe cannot reach us directly. It was emitted when the Universe was just 380,000 years old 000
Awarenergy @awarenergy.bsky.social · 04/09/2026Our Sun fuses hydrogen into helium, releasing lots of energy via two different thermonuclear pathways: 99% via the proton–proton chain, and 1% via the CNO cycle (carbon, nitrogen, and oxygen). The bigger and hotter a star, the more prominent the CNO cycle becomes 000
Awarenergy @awarenergy.bsky.social · 04/09/2026Parker Solar Probe, the fastest spacecraft ever built, reaching 190 km/s at its maximum speed, would take around 6,700 years to travel to Proxima Centauri, the nearest star 000
Awarenergy @awarenergy.bsky.social · 29/08/2026The weak nuclear force, one of the 4 fundamental forces, is responsible for the radioactive decay of atoms. Its range is limited to subatomic distances, and it only acts on particles with left-handed spin and on right-handed antiparticles 000
Awarenergy @awarenergy.bsky.social · 29/08/2026Neutrinos are the most abundant subatomic particles with mass in the universe, whereas the massless photons are the most plentiful in absolute terms 000
Awarenergy @awarenergy.bsky.social · 28/08/2026The Milky Way contains roughly 100–400 billion stars. Its present star-formation rate is relatively modest, just 1 or 2 stars per year 000
Awarenergy @awarenergy.bsky.social · 27/08/2026Time dilation and length contraction arise because space and time are intertwined into spacetime, and all inertial observers must measure the same speed of light 000
Awarenergy @awarenergy.bsky.social · 26/08/2026Saturn’s largest moon Titan, the second largest in our Solar System, is larger than planet Mercury and more than 3 times bigger in volume than our Moon 000
Awarenergy @awarenergy.bsky.social · 25/08/2026Of all the energy produced by the Sun, only 0.000000045%, or 1 part in 10 billion, makes it to the surface of Earth, providing the power source for all life on our planet 000
Awarenergy @awarenergy.bsky.social · 24/08/2026Io is the densest known moon in the Solar System, with an average density of about 3.53 g/cm³ 000
Awarenergy @awarenergy.bsky.social · 23/08/2026The life expectancy of stars ranges anywhere from 10 million years for the largest stars, to 10 billion years for medium-sized stars like our Sun, to trillions of years for the smallest stars 033
Awarenergy @awarenergy.bsky.social · 22/08/2026The Higgs mechanism explained why many elementary particles have mass. The mystery was theoretically resolved in the 1960s, with experimental confirmation in 2012 000
Awarenergy @awarenergy.bsky.social · 21/08/2026The four gas giant planets, Jupiter, Saturn, Uranus, and Neptune, have a few retrograde moons that go around in the opposite direction to their planets’ rotation. The largest retrograde moon in the Solar System is Triton, which orbits Neptune 000
Awarenergy @awarenergy.bsky.social · 20/08/2026Some of the most profound mysteries in science involve time: Why does time have just one direction? Is there a single possible past? Is the present physically distinct from the past and future, or is it just an emergent property of consciousness? What is time? 000
Awarenergy @awarenergy.bsky.social · 19/08/2026We are living relatively late in the Universe's era of star formation. Most of the stars ever to be born in the history of the Universe, both past and future, have already been created 000
Awarenergy @awarenergy.bsky.social · 18/08/2026An electron can make an instantaneous transition from a higher energy level to a lower one. The energy lost in the transition is emitted as a photon, whose energy equals the difference between the two levels 000
Awarenergy @awarenergy.bsky.social · 17/08/2026The Universe does not necessarily possess a single, uniquely defined, observer-independent history. Its quantum history is conditional on the present state being considered or observed 010
Awarenergy @awarenergy.bsky.social · 17/08/2026The Triangulum Galaxy, a spiral galaxy 2.73 million light-years away from Earth, has a diameter of 60,000 light-years, and it is one of the most distant objects that can be viewed with the naked eye under good viewing conditions 011
Awarenergy @awarenergy.bsky.social · 17/08/2026The strongest wind ever recorded on Earth was 400 km/h in Australia in 1996. The strongest winds recorded on Saturn reached speeds of up to 1800 km/h 010
Awarenergy @awarenergy.bsky.social · 17/08/2026In 1970, Soviet Luna 16 became the first robotic probe to land on the Moon and bring samples of lunar soil back to Earth, and it was the third lunar sample return mission overall, following the manned Apollo 11 and Apollo 12 missions 010
Awarenergy @awarenergy.bsky.social · 11/08/2026Einstein’s General Relativity implies, among other things, that matter and energy tell spacetime how to curve, while the curvature of spacetime tells matter how to move 000
Awarenergy @awarenergy.bsky.social · 11/08/2026The Apollo 8 mission in 1968 was the first manned spacecraft to leave Earth orbit and fly around the Moon, and the 3 astronauts on board were the first humans to see the Earth rising above the lunar horizon 000
Awarenergy @awarenergy.bsky.social · 11/08/2026Earth’s largest volcano is Mauna Loa in Hawaii, which rises about 17 km from its base on the ocean floor to its summit. Mars’s Olympus Mons, the largest volcano in the Solar System, rises about 22 km above the surrounding Martian plains 000