Professor Quibb: Infinity Series Portal

To view any page of the Infinity Series, click below (the posts are provided in order from top to bottom):

Infinity: The First Transfinite Cardinal
Infinity: Countable Sets
Infinity: The Cardinality of the Continuum
Infinity: Operations on Cardinals
Infinity: Uncountable Sets
Infinity: Ordinal Numbers
Infinity: Operations on Ordinals
Infinity: Countable Ordinals
Infinity: Larger Countable Ordinals
Infinity: Impredicative Ordinals
Infinity: Extended Collapsing Functions
Infinity: Beyond Recursive Ordinals
Infinity: The Aleph Sequence

Spacecraft Update

As of August 2020...

New Horizons: Launched in January 2006, the probe successfully flew by Pluto on July 14, 2015. It made a flyby of Kuiper Belt object Arrokoth on January 1, 2019. The probe is now studying the outer reaches of the Solar System. For more information about the New Horizons mission, see the main post, New Horizons.

Juno: Launched in 2011, the Juno probe has been orbiting Jupiter since 2016. It has provided unprecedented insights into the structure, evolution, and composition of the Solar System's largest planet. For more information, see the main post, Juno.

Mars Science Laboratory: This mission's primary payload is a rover, Curiosity, by far the largest rover to date. Since it landed on Mars in 2012, the rover has discovered, among other things, the existence of liquid water on Mars and compelling evidence that Mars could have supported life in the past. Most of its mission has been spent ascending Mt. Sharp inside Gale Crater. For more information, see the main post, Mars Science Laboratory.

MAVEN: Launched on November 18, 2013, MAVEN is a Martian orbiter which arrived at Mars on in 2014. Its mission is to investigate the Martian atmosphere and its interaction with solar wind. These Data have revealed by what means and how quickly Mars's atmosphere has been lost over time, the nature of the planet's magnetic field, and has given clues that Mars could have supported life billions of years ago. For more information, see the main post, MAVEN.

ExoMars: ExoMars is a mission to investigate possible traces of life on the planet Mars. The mission includes two launches: one in 2016 and one in 2020, with the first delivering an orbiter and a lander to Mars and the second the Rosalind Franklin rover. The first mission's lander crashed upon entry, but the Trace Gas Orbiter has begun its science mission. For more information, see the main post, ExoMars.

OSIRIS-REx: OSIRIS-REx is a sample return mission to the asteroid 101955 Bennu. Launched on September 8, 2016, the probe arrived at its destination in 2018. Late in 2019, a site was chosen for sample collection in October 2020. For more information, see the main post, OSIRIS-REx.

Posts about completed missions: MESSENGER, Rosetta, Kepler, Dawn.

Professor Quibb

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