cleared articles

What is the contentious third requirement for a celestial body to be defined as a planet by the IAU?

What is the contentious third requirement for a celestial body to be defined as a planet by the IAU?

Which quantitative measure did Steven Soter develop to numerically assess orbital dominance?

Which quantitative measure did Steven Soter develop to numerically assess orbital dominance?

What is the minimum Planetary Discriminant (Hp) value required for an object to meet the orbital clearing criterion for planetary status?

What is the minimum Planetary Discriminant (Hp) value required for an object to meet the orbital clearing criterion for planetary status?

Why does Pluto fail the orbital clearing requirement according to its location in the solar system?

Why does Pluto fail the orbital clearing requirement according to its location in the solar system?

What does the term hydrostatic equilibrium imply about a celestial object's physical shape?

What does the term hydrostatic equilibrium imply about a celestial object's physical shape?

How significantly does Earth's Planetary Discriminant (Hp) value exceed the minimum threshold of 100?

How significantly does Earth's Planetary Discriminant (Hp) value exceed the minimum threshold of 100?

What kind of material does the IAU definition of "debris" refer to, as opposed to space junk in LEO?

What kind of material does the IAU definition of "debris" refer to, as opposed to space junk in LEO?

Despite having cleared its orbit, what specific groups of asteroids does Jupiter share its orbital path with?

Despite having cleared its orbit, what specific groups of asteroids does Jupiter share its orbital path with?

What is the primary condition regarding primary stellar association for an object to be classified as a planet?

What is the primary condition regarding primary stellar association for an object to be classified as a planet?

What concept best frames the historical process of "clearing the neighborhood" rather than a single instantaneous event?

What concept best frames the historical process of "clearing the neighborhood" rather than a single instantaneous event?

What is the most critical part of the modern scientific definition distinguishing a planet from a dwarf planet?

What is the most critical part of the modern scientific definition distinguishing a planet from a dwarf planet?

What action must an object take regarding sharing material in its orbital path to clear its neighborhood?

What action must an object take regarding sharing material in its orbital path to clear its neighborhood?

In what year did the IAU formalize the definition incorporating the 'clearing the neighborhood' criterion?

In what year did the IAU formalize the definition incorporating the 'clearing the neighborhood' criterion?

Why does Pluto fail the 'clearing the neighborhood' test according to the definition?

Why does Pluto fail the 'clearing the neighborhood' test according to the definition?

What parameter is used in Steven Soter's method to quantify gravitational superiority for the 'clearing the neighborhood' criterion?

What parameter is used in Steven Soter's method to quantify gravitational superiority for the 'clearing the neighborhood' criterion?

What estimated minimum value must the dominance parameter (C) reach for an object to generally be considered to have cleared its neighborhood?

What estimated minimum value must the dominance parameter (C) reach for an object to generally be considered to have cleared its neighborhood?

Besides clearing its neighborhood, what fundamental geometric requirement must a celestial body meet to qualify as a planet under the current IAU framework?

Besides clearing its neighborhood, what fundamental geometric requirement must a celestial body meet to qualify as a planet under the current IAU framework?

How does a planet's gravitational dominance typically manifest in its orbital zone?

How does a planet's gravitational dominance typically manifest in its orbital zone?

Why is applying the 'clearing the neighborhood' criterion difficult when classifying exoplanets?

Why is applying the 'clearing the neighborhood' criterion difficult when classifying exoplanets?

Why are large, spherical bodies like Ganymede or Titan typically excluded from planet classification despite their size?

Why are large, spherical bodies like Ganymede or Titan typically excluded from planet classification despite their size?

Besides the mass of the candidate body (M), what two elements are factored into Steven Soter's C calculation?

Besides the mass of the candidate body (M), what two elements are factored into Steven Soter's C calculation?

What nuance does the text mention regarding the C value when comparing objects in the main Asteroid Belt versus the outer solar system?

What nuance does the text mention regarding the C value when comparing objects in the main Asteroid Belt versus the outer solar system?

What makes clearing space debris one of humanity's most complex challenges?

What makes clearing space debris one of humanity's most complex challenges?

What generally characterizes space debris according to the text?

What generally characterizes space debris according to the text?

Which size range of debris poses a significant risk but is difficult to catalog reliably?

Which size range of debris poses a significant risk but is difficult to catalog reliably?

What theoretical scenario drives the push for Active Debris Removal (ADR)?

What theoretical scenario drives the push for Active Debris Removal (ADR)?

How does Active Debris Removal (ADR) differ from mitigation strategies?

How does Active Debris Removal (ADR) differ from mitigation strategies?

Which technique is listed as a proposed contact method for debris removal?

Which technique is listed as a proposed contact method for debris removal?

What is a concept studied for non-contact debris removal?

What is a concept studied for non-contact debris removal?

What is the ultimate objective for an object captured by an ADR mission?

What is the ultimate objective for an object captured by an ADR mission?

Approximately how fast do objects move in Low Earth Orbit (LEO)?

Approximately how fast do objects move in Low Earth Orbit (LEO)?

What legal aspect requires explicit permission before an ADR mission can remove a defunct satellite?

What legal aspect requires explicit permission before an ADR mission can remove a defunct satellite?