Tahlequah Daily Press

Get the scoop!

December 21, 2012

Another Earth just 12 light-years away?

Astronomers have discovered what may be five planets orbiting Tau Ceti, the closest single star beyond our solar system whose temperature and luminosity nearly match the sun's. If the planets are there, one of them is about the right distance from the star to sport mild temperatures, oceans of liquid water, and even life. Don't pack your bags just yet, though: The discovery still needs to be confirmed.

Tau Ceti is only 12 light-years from Earth, just three times as far as our sun's nearest stellar neighbor, Alpha Centauri. Tau Ceti resembles the sun so much that astronomer Frank Drake, who has long sought radio signals from possible extraterrestrial civilizations, made it his first target back in 1960. Unlike most stars, which are faint, cool, and small, Tau Ceti is a bright G-type yellow main-sequence star like the sun, a trait that only one in 25 stars boasts. Moreover, unlike Alpha Centauri, which also harbors a G-type star and even a planet, Tau Ceti is single, so there's no second star in the system whose gravity could yank planets away.

Astronomer Mikko Tuomi of the University of Hertfordshire in the United Kingdom and his colleagues analyzed more than 6000 observations of Tau Ceti from telescopes in Chile, Australia, and Hawaii. As the researchers will report in Astronomy & Astrophysics, slight changes in Tau Ceti's motion through space suggest that the star may be responding to gravitational tugs from five planets that are only about two to seven times as massive as Earth.

If that's right, all five planets lie closer to their star than Mars does to ours; however, Tau Ceti emits only 45% as much light as the sun, so each planet receives less warmth than a planet would at the same distance from our sun. Tau Ceti's three innermost planets-designated b, c, and d-are probably too hot to support life, being so close to the star that they require only 14, 35, and 94 days to complete an orbit. The farthest of the three, d, is about as close to Tau Ceti as Mercury is to the sun.

Text Only
Get the scoop!
  • 3.2 quake shakes area near Enid

    A magnitude 3.2 earthquake shook the Enid area Thursday evening.

    August 1, 2014

  • Why a see-through mouse is a big deal for scientists

    A group of Caltech researchers announced in Cell Thursday their success in making an entire organism transparent. Unfortunately, this isn't any kind of "Invisible Man" scenario: The organism in question is a mouse, and the mouse in question is quite dead.

    July 31, 2014

  • Lindley, Tom.jpg Grandstands feel a little empty at NASCAR races

    Two decades after NASCAR started running at Indianapolis Motor Speedway, the crowds have thinned considerably. It's probably no reflection on the sport's massive following, which stretches from coast to coast, but it surely doesn't NASCAR's image help when the cameras pan across all of those empty seats.

    July 31, 2014 1 Photo

  • The virtues of lying

    Two computational scientists set out recently to simulate the effects of lying in a virtual human population. Their results, published in the Proceedings of the Royal Society B, show that lying is essential for the growth of a cohesive social network.

    July 31, 2014

  • lockport-police.jpg Police department turns to Facebook for guidance on use of 'negro'

    What seems to be a data entry mistake by a small town police department in western New York has turned into a social media firestorm centered around the word "negro" and whether it's acceptable to use in modern society.

    July 31, 2014 3 Photos

  • Sunburn isn't the only sign of summer that can leave you itchy and blistered

    You've got a rash. You quickly rule out the usual suspects: You haven't been gardening or hiking or even picnicking, so it's probably not a plant irritant such as poison ivy or wild parsnip; likewise, it's probably not chiggers or ticks carrying Lyme disease; and you haven't been swimming in a pond, which can harbor the parasite that causes swimmer's itch.

    July 30, 2014

  • Rodden, Danny.jpg Sheriff accused of lying about relationship with prostitute

    The sheriff of Clark County, Ind., faces an eight-count federal indictment that accuses him of lying about paying a prostitute for a sex act and giving her a badge so that she could claim a discount rate at a hotel.

    July 30, 2014 1 Photo

  • Sharknado.jpg Sharknado 2 set to attack viewers tonight

    In the face of another "Sharknado" TV movie (the even-more-inane "Sharknado 2: The Second One," premiering Wednesday night on Syfy), there isn't much for a critic to say except to echo what the characters themselves so frequently scream when confronted by a great white shark spinning toward them in a funnel cloud:
    "LOOK OUT!!"

    July 30, 2014 1 Photo

  • Lindley, Tom.jpg Sideshows involving Rice and Dungy stain NFL's image

    Pro football training camps should be all about, well, football. But the talk around the NFL is about Baltimore Ravens running back Ray Rice's two-game suspension, Tony Dungy's indelicate remarks about Michael Sam and Jim Irsay's largesse. What kind of league is Roger Goodell running?

    July 30, 2014 1 Photo

  • 20140729-AMX-GIVHAN292.jpg Spanx stretches into new territory with jeans, but promised magic is elusive

    The Spanx empire of stomach-flattening, thigh-slimming, jiggle-reducing foundation garments has expanded to include what the brand promises is the mother of all body-shaping miracles: Spanx jeans.

    July 30, 2014 1 Photo

  • linda-ronstadt.jpg Obama had crush on First Lady of Rock

    Linda Ronstadt remained composed as she walked up to claim her National Medal of Arts at a White House ceremony Monday afternoon.

    July 30, 2014 1 Photo

  • Medical marijuana opponents' most powerful argument is at odds with a mountain of research

    Opponents of marijuana legalization are rapidly losing the battle for hearts and minds. Simply put, the public understands that however you measure the consequences of marijuana use, the drug is significantly less harmful to users and society than tobacco or alcohol.

    July 30, 2014

  • Can black women have it all?

    In a powerful new essay for the National Journal, my friend Michel Martin makes a compelling case for why we need to continue the having-it-all conversation.

    July 30, 2014

  • 20140727-AMX-GUNS271.jpg Beretta, other gun makers heading to friendlier states

    In moving south and taking 160 jobs with it, Beretta joins several other prominent gunmakers abandoning liberal states that passed tough gun laws after the Newtown shooting.

    July 28, 2014 1 Photo

  • Fast food comes to standstill in China

    The shortage of meat is the result of China's latest food scandal, in which a Shanghai supplier allegedly tackled the problem of expired meat by putting it in new packaging and shipping it to fast-food restaurants around the country

    July 28, 2014

Poll

Do you think "blue laws" related to Sunday alcohol sales in Oklahoma should be relaxed? Choose the option that most closely reflects your opinion.

Alcoholic drinks should be sold Sundays in restaurants and bars, and liquor stores should be open.
Alcoholic drinks should be sold Sundays in restaurants and bars only; liquor stores should stay closed.
Liquor stores should be open Sundays, but drinks should not be served anywhere on Sundays.
The law should remain as it is now; liquor stores should be closed, and drinks should be served on Sundays according to county option.
No alcohol should be sold or served publicly on Sundays.
Undecided.
     View Results
Tahlequah Daily Press Twitter
Follow us on twitter
AP Video
Renewed Violence Taking Toll on Gaza Residents 2 Americans Detained in North Korea Seek Help US Employers Add 209K Jobs, Rate 6.2 Pct House GOP Optimistic About New Border Bill Gaza Truce Unravels; Israel, Hamas Trade Blame Raw: Tunisia Closes Borders With Libya Four Rescued From Crashed Plane Couple Channel Grief Into Soldiers' Retreat WWI Aviation Still Alive at Aerodrome in NY Raw: Rescuers at Taiwan Explosion Scene Raw: Woman Who Faced Death Over Faith in N.H. Clinton Before 9-11: Could Have Killed Bin Laden Netanyahu Vows to Destroy Hamas Tunnels Obama Slams Republicans Over Lawsuit House Leaders Trade Blame for Inaction
Stocks