Astronomers craving their first image
of a planet beyond our solar system now have fresh targets to explore: newly identified siblings of Beta Pictoris, the most famous dust - shrouded star in the sky.
Participating in the conversation were Russlynn Ali, assistant secretary for civil rights at the Department of Education; Joan Steitz, a molecular biophysicist at Yale University who studies RNA; Shirley Malcom, head of the directorate for education and human resources at AAAS; and Sara Seager, a planetary scientist and physicist at MIT who studies the atmospheres
of planets beyond the solar system.
One of the big questions in the study
of planets beyond our solar system, called exoplanets, is whether or not they are habitable.
All of our knowledge
of planets beyond our solar system is therefore somewhat indirect; it comes from analyzing the much brighter light from a planet's host star, influenced by the planet in some way.
The knowledge and tools NASA has developed to study life on Earth will be a great asset to the study
of planets beyond our solar system.
Mautner believes there may be hundreds
of planets beyond our solar system that are good candidates, perhaps including the recently discovered, «Earth next door.»
«Geoff Marcy is undeniably the most prominent exoplanet researcher in the U.S.,» he said, referring to the study
of planets beyond our solar system.
Not exact matches
NASA scientists on Monday announced the discovery
of 219 new objects
beyond our
solar system that are almost certainly
planets.
But other planetary scientists, including Jonathan Lunine
of Cornell University in Ithaca, New York, note that JWST will also use its infrared eyes to peer at
planets both inside the
Solar System and
beyond.
At the ends
of the
Solar System,
beyond the orbit
of Neptune, there is a belt
of objects composed
of ice and rocks, among which four dwarf
planets stand out: Pluto, Eris, Makemake and Haumea.
The collection will help scientists to better understand not only how the atmospheres
of the outer
planets function, but also the atmospheres
of Earth and
planets beyond the
solar system.
Using data from our
solar system and observations
of huge
planets far
beyond the visual range
of any telescope, astrophysicists René Heller and Ralph Pudritz have shown that some moons
of those
planets could be habitable.
«With a long, intricate dance around the Saturn
system, Cassini aims to study the Saturn
system from as many angles as possible,» said Linda Spilker, Cassini project scientist based at NASA's Jet Propulsion Laboratory in Pasadena, Calif. «
Beyond showing us the beauty
of the Ringed
Planet, data like these also improve our understanding
of the history
of the faint rings around Saturn and the way disks around
planets form — clues to how our own
solar system formed around the sun.»
With
planets orbiting M dwarfs quickly becoming the darlings in the search for life
beyond our
solar system, a new generation
of observatories are poised to discover hundreds
of worlds around these stars.
Such an event could enable bacteria and other forms
of life to make their way from one
planet in the
solar system to another and perhaps
beyond.
Hundreds
of exoplanets —
planets beyond our
solar system — have already been detected from the ground and from other spacecraft via transit searches and other methods.
Astronomers will be searching for direct evidence
of a ninth
planet in the far reaches
of the
solar system; its existence was inferred this year from its gravitational effects on icy objects
beyond Pluto.
With them it will peer through the creaking, dusty cosmic eons to study much that astronomers using Hubble and other telescopes have barely begun to glimpse: the universe's very first galaxies, nascent stars and
planets in mid-creation in nebulous wombs, the atmospheres
of worlds both within and
beyond our
solar system.
NASA's Kepler mission has added five new
planets to a growing roster
of more than 400
beyond our
solar system — and none
of the newbies is remotely hospitable to life.
Astronomers have recently found hundreds
of new exoplanets, or
planets beyond our own
solar system.
«A magnetic field protects the atmosphere
of a
planet or moon, and the atmosphere protects the surface,» says study coauthor Sonia Tikoo, a planetary scientist at Rutgers University in New Brunswick, N.J. Together, the two protect the potential habitability
of the
planet or moon, possibly those far
beyond our
solar system.
One
of our
solar system's five dwarf
planets, Makemake — an icy, 1400 - kilometer - wide orb that circles the sun far
beyond Pluto — was discovered in 2005.
It envisions the great reshuffling as a brief, violent affair that not only put the outer
planets where they are today but also created the Kuiper belt
of small icy bodies
beyond Neptune, gave the
planets scores
of oddly orbiting moons, and bombarded the
solar system with a rain
of asteroids and comets so fierce that it would have cooked all but the deepest subterranean life on early Earth.
The presence
of water in liquid form still guides our searches for extraterrestrial life: on Mars, on the moons
of Saturn and Jupiter or on extrasolar
planets (
beyond our
Solar System).
A SUBTLE anomaly in the orbit
of the
planets in our
solar system could prove a controversial idea that goes
beyond Einstein.
The idea
of finding
planets beyond the
solar system was considered borderline crazy just a few decades ago, until Didier Queloz ran headlong into the first one
Following the discovery
of the first extrasolar
planet beyond our
solar system in 1992, the number
of samples has now reached hundreds.
Comet Wild - 2 used to orbit
beyond the orbit
of Jupiter, but it made an unusually close approach to the giant
planet in September 1974 and got catapulted into the inner
solar system.
The collaboration was inspired by the recently proposed ninth
planet, possibly orbiting at the fringes
of our
solar system beyond Pluto.
Researchers use a concept known as the habitable zone to distinguish between these two types
of planets, which exist
beyond our
solar system.
With its twin, Voyager 2, it was sent to explore the outer
planets of our
solar system and what lies
beyond, in interstellar space.
Some
of these
planets, all located far
beyond Earth's
solar system, could contain vast deposits
of graphite or diamonds, and their apparent abundance prompts new questions about the implications
of carbon - intense environments for climate, plate tectonics, and other geological processes, as well as for life.
Bruce Dorminey is a science journalist and author
of «Distant Wanderers: The Search for
Planets beyond the
Solar System.»
The belt, which consists
of antiprotons trapped by Earth's magnetic field several hundred kilometers above the
planet's surface, may ultimately become a key source
of fuel for missions venturing
beyond the
solar system.
Observations verify that at least two
planets with Earth - like masses — the first confirmed
beyond our
solar system — orbit a whirling neutron star that spits out fierce pulses
of radiation, according to a report here 29 May at a meeting
of the American Astronomical Society.
Kepler - 10b was the first «iron - clad proof
of a rocky
planet beyond our
solar system» back in 2001.
Learn about the formation and origin
of the
Solar System and go
beyond our neighborhood to investigate exoplanets (
planets around other stars) in this video
of class 11
of Bruce Betts» Introduction to Planetary Science and Astronomy class.
Kepler lead scientist William Borucki, with NASA's Ames Research Center in Mountain View, California, said he's not surprised by the finding
of the European team, which uses a light - splitting spectrograph called HARPS on a telescope at the La Silla Observatory in Chile to look for
planets beyond the
solar system.
Sharing the story, the science, and the adventure
of NASA's scientific explorations
of our home
planet, the
solar system, and the universe
beyond!
This episode
of «Hubble at 25» uncovers Hubble's key role in the study
of planets beyond our own
solar system.
The Kuiper belt is an enormous cluster
of small bodies like comets and minor
planets located in the outer reaches
of our
solar system,
beyond Neptune.
If this finding is correct, that would mean the Milky Way is home to tens
of billions
of planets in habitable zones, concludes a team
of scientists using an Earth - based telescope to look for
planets beyond the
solar system.
Calculations by to Weigert and Holman (1997) indicated that the distance from the star where an Earth - type
planet would be «comfortable» with liquid water is centered around 0.73 to 0.74 AU — somewhat
beyond the orbital distance
of Venus in the
Solar System — with an orbital period under an Earth year using calculations based on Hart (1979).
The discovery, reported Wednesday in the journal Nature, puts the
planets orbiting the star TRAPPIST - 1 at the top
of astronomers» list
of places to look for life
beyond the
solar system.
The new worlds present an incredible spectrum
of what
planets beyond our
solar system can look like.
Beyond the Sun, its eight
planets, and their larger moons, the
solar system is home to a myriad
of other, smaller bodies, including dwarf
planets, asteroids, trojans, centaurs, and comets, all the way down to interplanetary dust particles.
On 6 October 1995, astronomers started a revolution with the discovery
of 51 Pegasi b — the first
planet found orbiting a Sun - like star
beyond our
solar system.
An international team
of astronomers using data from NASA's Hubble Space Telescope has made an unparalleled observation, detecting significant changes in the atmosphere
of a
planet located
beyond our
solar system.
Because stars and
planets beyond our
solar system are too distant and unreachable, a team
of scientists created a technique that could determine which exoplanets have the potential to accommodate human life.
Other
solar system bodies that are possibly dwarf
planets include Sedna and Quaoar, small worlds far
beyond Pluto's orbit, and 2012 VP113, an object that is thought to have one
of the most distant orbits found
beyond the known edge
of our
solar system.