speed articles
What is Earth's approximate speed as it orbits the Sun?
What is the approximate speed of the Sun traveling around the Milky Way's core?
Approximately how long does it take the solar system to complete one full circuit around the galactic center?
What reference frame is used to measure the bulk motion of our local patch of the universe?
What is the estimated velocity of the Milky Way relative to the CMB?
The Milky Way's motion relative to the CMB is currently directed toward which specific region?
Which structure is the Milky Way part of, which is itself a member of the Virgo Supercluster?
How much faster is the Milky Way's CMB velocity compared to Earth's orbital speed?
What is scientifically remarkable about the El Gordo galaxy cluster's motion?
At $627 ext{ km/s}$, approximately how long would it take the Milky Way to travel a distance equal to its own diameter?
What mysterious, pervasive repulsive force is attributed to the accelerating expansion of the universe?
What was the prevailing expectation regarding the expansion initiated by the Big Bang before 1998 observations?
How is the observation that distant galaxies recede faster than light reconciled?
What happens to light emitted *now* by a galaxy whose recession velocity exceeds the speed of light due to expansion?
What astronomical objects act as dependable "standard candles" for measuring vast cosmic distances?
What concept quantifies the disagreement between two primary ways of measuring the current expansion rate?
Which observation allows physicists to predict the Hubble constant based on the very early universe within the $\Lambda$CDM model?
If a supernova in a distant, rapidly receding galaxy should take time $T$ to fade, how long do observers see it take?
What is the predicted fate of the universe if dark energy causes expansion but does not become overwhelmingly powerful?
In the catastrophic Big Rip scenario, what is the final structure to be torn apart by infinite expansion?
Why does the faster-than-predicted cosmic expansion not immediately affect the distances within our solar system?
Which mission holds the record for the fastest speed ever achieved by a human being?
What was the peak velocity recorded for the Apollo 10 crew upon returning to Earth?
What was the primary role of the Apollo 10 mission mentioned in the text?
How many times faster than the speed of sound at sea level was the Apollo 10 crew traveling at their peak?
What maneuver was essential for achieving the record-setting return speed of Apollo 10?
Which astronaut was named as a member of the Apollo 10 crew?
What specific event immediately preceded the moment Apollo 10 reached peak velocity?
What was the consequence if the Apollo 10 capsule had hit the atmosphere too steeply at 24,791 mph?
What modern, uncrewed mission achieved a slightly faster velocity during a lunar flyby re-entry?