What is Mercury’s position in our Solar System?
: First planet from the Sun Go 4 Qui whopisie
What gas gives Uranus its blue‑green color?
Methane
What is Neptune’s position in our Solar System?
8
What is a black hole?
A region of space where gravity is so strong that nothing, not even light, can escape
Who discovered the first pulsar and in what year?
Jocelyn Bell Burnell, 1967 676767676767676767
How many natural moons does Mercury have?
None Fun Trivia+1
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What is Uranus’s axial tilt?
About 98°
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What color does Neptune appear in the sky?
Blue — due to methane in its atmosphere absorbing red light
What is an accretion disk
: A disk of hot, glowing material orbiting a black hole, heated by friction and compression
What is the fastest known pulsar and its spin rate?
psr j
What is Mercury’s surface temperature range?
–173 °C to 427 °C
Which spacecraft visited Uranus?
Voyager 2
How many moons does Neptune have?
At least 14 known moons, including the large one, Triton
Who proposed that black holes can evaporate?
Stephen Hawking
Pulsars emit radiation across the electromagnetic spectrum, including:
Radio waves, X-rays, and gamma rays popbluff.com.
Explanation: They are not limited to radio waves; many pulsars are observed in multiple wavelengths.
What is Mercury’s axial tilt?
Nearly 0
What is the largest moon of Uranus?
Titania
What is Neptune’s largest moon?
Triton
Do black holes act like cosmic vacuum cleaners?
Answer: No — they only pull in matter that comes close enough; orbits can remain stable at a distance randomtrivia.co.
What makes pulsars so precise in timing?
Their extremely regular rotation rate popbluff.com.
Explanation: Some millisecond pulsars are accurate to within a fraction of a millisecond, rivaling atomic clocks.
What is the name of the first spacecraft to visit Mercury?
Mariner 10
How many moons were known before Voyager 2’s flyby?
5
what is the Great Dark Spot on Neptune
A giant storm system, similar to Jupiter’s Great Red Spot, that changed over time more like abes butttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttt
What are the three measurable properties of an isolated black hole in the simplest model
Mass, spin (angular momentum), and electric charge
What type of star is a pulsar?
A neutron star