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What appear to be trees on the surface of this planet are actually cascades of dark sand streaking its dunes |
Mars
|
$400 |
DJ |
IT'S ASTRONOMICAL |
2025-12-02 |
#9447 |
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Weak gravity there has led to the tallest-known volcanoes in the solar system |
Mars
DD
|
$1,000 |
J |
THE PLANETS |
2024-05-08 |
#9098 |
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Gale Crater, found to have evidence of past water |
Mars
|
$200 |
J |
FEATURES OF THE PLANET |
2023-12-29 |
#9005 |
|
The ancient Romans named this planet after their god of war, perhaps because it resembles a drop of blood in the night sky |
Mars
|
$600 |
DJ |
ON ANOTHER PLANET |
2023-10-18 |
#17 |
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About half the size of Earth, it has a 24.6-hour day |
Mars
|
$200 |
J |
QUICK PLANETS |
2023-05-05 |
#8865 |
|
It's the second smallest of the solar system's 8 major planets |
Mars
|
$1,200 |
DJ |
ASTRONOMY |
2022-06-13 |
#8661 |
|
A euphemism for the sphere of war:the Field of ____ |
Mars
|
$400 |
J |
PLANET FILL IN |
2021-11-03 |
#8503 |
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Tried to kill visitor Matt Damon in a 2015 movie |
Mars
|
$200 |
J |
PLANET SHAMING |
2021-04-20 |
#8382 |
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It's home to the solar system's highest mountain, Olympus Mons |
Mars
|
$1,200 |
DJ |
PLANETARY EXTREMES |
2020-12-07 |
#8296 |
|
Its year is 687 terrestrial days long |
Mars
|
$2,000 |
DJ |
LET'S HAVE A PLANET |
2020-05-18 |
#8216 |
|
With its gravity 38% of Earth's, astronauts on NASA's projected 2030s mission to this planet will weigh 2/3 less than here |
Mars
|
$800 |
DJ |
THE SOLAR SYSTEM |
2020-04-08 |
#8198 |
|
Like Earth, this planet has polar ice caps--the Planum Boreum & the Planum Australe |
Mars
|
$400 |
DJ |
THE PLANETS |
2019-05-06 |
#7986 |
|
In a Rob Zombie song, this "Needs Women", & apparently, they need to be "angry red women" |
Mars
|
$2,000 |
DJ |
THE TITLE PLANET |
2019-02-08 |
#7925 |
|
Its polar caps, which are believed to be carbon dioxide ice & water ice, grow in the winter & shrink in the summer |
Mars
|
$400 |
J |
PLANETARY FACTS |
2018-04-02 |
#7731 |
|
It rotates on its axis every 24 hours, 37 minutes |
Mars
|
$600 |
J |
PICK A PLANET |
2017-11-28 |
#7642 |
|
Images from Mariner 4 ended the myth of its canals |
Mars
|
$200 |
J |
WHAT'S THAT PLANET? |
2017-05-29 |
#7541 |
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It has flowing water from time to time, NASA announced in 2015 |
Mars
|
$200 |
J |
WHICH PLANET? |
2016-02-29 |
#7246 |
|
Its frozen dry ice polar caps recede & advance with the planet's seasons |
Mars
|
$600 |
J |
IT'S A PLANET |
2014-07-25 |
#6890 |
|
Veronica ____, a TV sleuth |
Veronica Mars
|
$200 |
J |
PLANET FILL-IN |
2014-02-24 |
#6781 |
|
Giovanni Schiaparelli named several features on this planet &, in 1877, discovered "canali", or channels |
Mars
|
$800 |
DJ |
ASTRONOMERS |
2013-06-19 |
#6633 |
|
It has the solar system's deepest canyon |
Mars
|
$2,000 |
DJ |
THE 8 PLANETS |
2013-05-02 |
#6599 |
|
After Veronica; before Blackmon |
Mars
|
$800 |
J |
WHERE IS THAT PLANET? |
2013-01-10 |
#6519 |
|
The Greeks called this planet Ares |
Mars
DD
|
$2,000 |
J |
THE PLANETS |
2012-07-31 |
#6432 |
|
Its volcano Olympus Mons is the highest mountain in the solar system |
Mars
|
$600 |
J |
THE PLANETS |
2011-10-14 |
#6225 |
|
Popular chocolate bar made in England since 1933 |
Mars
|
$600 |
J |
ONE OF THE 8 PLANETS |
2010-12-17 |
#6045 |
|
Its "day" is 24 hours & 39 minutes |
Mars
|
$400 |
DJ |
PICK A PLANET |
2010-01-01 |
#5825 |
|
Defaces |
Mars
|
$1,000 |
J |
ALSO A PLANET |
2009-01-08 |
#5604 |
|
Its moon Phobos orbits the planet in 7 hours, rises in the west, & sets in the east |
Mars
|
$800 |
DJ |
SPACE |
2008-02-15 |
#5400 |
|
In 2005 NASA experimented with a low-pressure greenhouse to grow plants on this carbon dioxide-rich planet |
Mars
|
$1,600 |
DJ |
DID YOU PLANET THAT WAY? |
2007-10-23 |
#5317 |
|
In December 2006 NASA announced that water may have flowed on this planet's surface within the past decade |
Mars
|
$200 |
J |
THE SOLAR SYSTEM |
2007-09-19 |
#5293 |
|
Instrument-laden rovers landed on this planet in 2004 |
Mars
|
$800 |
DJ |
NAME THAT PLANET |
2007-07-19 |
#5279 |
|
It has seasonal weather patterns & iron-rich minerals in the soil, giving it a distinct red color |
Mars
|
$200 |
J |
WHAT PLANET ARE YOU FROM? |
2006-10-05 |
#5074 |
|
Ares Vallis is one of the larger channels on the surface of this planet |
Mars
|
$400 |
J |
THE SOLAR SYSTEM |
2005-10-11 |
#4847 |
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(Leroy Chiao, aboard the International Space Station, reads the clue.) On January 14, 2004 President Bush said the I.S.S. would focus on human biology in space, to prepare for a first visit to this planet |
Mars
|
$400 |
DJ |
MAN IN SPACE |
2005-09-20 |
#4832 |
|
The moon Phobos is only about the same distance from this planet as Chicago is from London |
Mars
|
$1,200 |
DJ |
OTHER PLANETS' MOONS |
2005-06-21 |
#4802 |
|
The name of Antares, a red giant star, means "the rival of" this planet |
Mars
DD
|
$1,000 |
J |
THE PLANETS |
2004-12-03 |
#4660 |
|
It's the planet seen here |
Mars
|
$800 |
DJ |
THE SOLAR SYSTEM |
2004-05-28 |
#4555 |
|
In 2002 the Odyssey space probe determined ice lies just below the surface of this planet's poles |
Mars
|
$1,200 |
DJ |
THE SOLAR SYSTEM |
2004-01-01 |
#4449 |
|
This planet's day is almost exactly the same as ours--24 hours, 37 minutes |
Mars
|
$1,000 |
J |
THE PLANETS |
2003-04-14 |
#4296 |
|
I means "causes damage to" or "spoils the appearance of" |
Mars
|
$400 |
DJ |
PLANET NAMES |
2002-04-12 |
#4065 |
|
Winter in the northern hemisphere lasts about 150 days on this planet noted for its ice caps |
Mars
|
$600 |
J |
THE OTHER PLANETS |
2002-02-05 |
#4017 |
|
Planet whose symbol is seen here |
Mars
|
$1,000 |
J |
THE PLANETS |
2002-01-14 |
#4001 |
|
In July 1998 Japan launched Nozomi; it's set to reach this "Red Planet" in 2003 |
Mars
|
$100 |
J |
THE PLANETS |
2000-04-04 |
#3597 |
|
A camera orbiting this planet in March 1999 snapped a crater that resembles a "happy face" |
Mars
|
$200 |
J |
ASTRONOMY |
1999-09-15 |
#3453 |
|
Planet whose landscape is seen here |
Mars
|
$300 |
J |
THE PLANETS |
1998-11-24 |
#3272 |
|
After Earth, it's the planet whose day is closest to 24 hours long |
Mars
|
$1,000 |
DJ |
ASTRONOMY |
1998-07-13 |
#3211 |
|
Aries is ruled by this warlike planet named for the Roman god of war |
Mars
|
$200 |
J |
ASTROLOGY |
1998-05-12 |
#3167 |
|
Pathfinder is scheduled to land on this planet July 4, 1997 & dispatch a rover named Sojourner |
Mars
|
$400 |
DJ |
ASTRONOMY |
1997-06-26 |
#2969 |
|
In August 1996 NASA announced life may have existed on this planet, based on evidence from a meteorite |
Mars
|
$200 |
J |
THE PLANETS |
1997-04-10 |
#2914 |
|
British scientists announced that they had found organic material in a second meteorite from this planet |
Mars
|
$400 |
DJ |
ASTRONOMY & SPACE |
1997-02-07 |
#2870 |
|
A seismometer aboard the Viking 2 lander failed to detect any quakes on this red planet |
Mars
|
$200 |
DJ |
ASTRONOMY |
1997-01-27 |
#2861 |
|
In a 1908 book Percival Lowell proposed that its surface markings were irrigation canals |
Mars
|
$100 |
J |
THE PLANETS |
1996-10-01 |
#2777 |
|
The Snickers family |
Mars
|
$200 |
J |
PLANET NAMES |
1996-07-02 |
#2742 |
|
Antares, a red supergiant, may have been named for its resemblance in color to this planet |
Mars
|
$200 |
DJ |
STARS & CONSTELLATIONS |
1996-04-29 |
#2696 |
|
Meteorites believed to be from this "red planet" were found in Antarctica in the 1980s |
Mars
|
$200 |
J |
THE PLANETS |
1996-02-21 |
#2648 |
|
Hellas, an impact crater on this "Red" planet, is over 900 miles wide |
Mars
|
$200 |
DJ |
THE PLANETS |
1996-02-06 |
#2637 |
|
To the naked eye this planet appears as a bright red star |
Mars
|
$300 |
J |
ASTRONOMY |
1995-12-25 |
#2606 |
|
In 1965 a panel of scientists asserted it was entirely possible there is life on this planet |
Mars
|
$600 |
DJ |
THE PLANETS |
1995-12-04 |
#2591 |
|
As seen by the Viking spacecraft, the sky on this planet is pale pink |
Mars
|
$200 |
J |
THE PLANETS |
1995-06-26 |
#2506 |
|
American astronomer Asaph Hall discovered this planet's moons Phobos & Deimos |
Mars
|
$400 |
DJ |
ASTRONOMY |
1995-05-09 |
#2472 |
|
The moon nearest a planet in our solar system is Phobos, 5,800 miles away from this planet |
Mars
|
$400 |
DJ |
ASTRONOMY |
1995-03-23 |
#2439 |
|
The USSR sent Phobos 1 & 2 to this planet's moon Phobos but both probes were lost |
Mars
|
$600 |
DJ |
THE PLANETS |
1994-09-29 |
#2314 |
|
In August 1993 the Observer probe sent to study this planet was lost in space |
Mars
|
$600 |
DJ |
ASTRONOMY |
1994-05-11 |
#2243 |
|
Deimos, the outermost moon of this planet has an average diameter of only 7.8 miles |
Mars
|
$300 |
J |
ASTRONOMY & SPACE |
1994-03-22 |
#2207 |
|
Its equatorial canyons were named Valles Marineris after the Mariner craft that photographed them |
Mars
|
$200 |
DJ |
THE PLANETS |
1994-03-08 |
#2197 |
|
The Facts on File Dictionary of Astronomy has entries for this planet's polar caps & volcanos |
Mars
|
$400 |
J |
ASTRONOMY |
1993-12-10 |
#2135 |
|
The first Soviet spacecraft to land on it transmitted for 20 seconds; the first U.S. craft, for 6 years |
Mars
|
$400 |
J |
THE PLANETS |
1993-06-07 |
#2031 |
|
Olympus Mons, believed to be the largest volcano in the solar system, is located on this planet |
Mars
DD
|
$700 |
J |
ASTRONOMY |
1993-05-12 |
#2013 |
|
In 1976 the Viking I lander found that this planet had an atmosphere of 95% carbon dioxide |
Mars
|
$400 |
J |
THE PLANETS |
1993-03-16 |
#1972 |
|
Areography is the study of the geography of this planet |
Mars
|
$1,000 |
DJ |
ASTRONOMY |
1993-02-17 |
#1953 |
|
American astronomer Asaph Hall discovered this planet's 2 moons in 1877 |
Mars
|
$800 |
DJ |
THE PLANETS |
1993-01-19 |
#1932 |
|
In a 1908 book, Percival Lowell proposed that the markings on this planet were irrigation canals |
Mars
|
$200 |
DJ |
ASTRONOMY |
1992-11-16 |
#1886 |
|
Oxidized iron in this planet's surface material gives it its reddish color |
Mars
|
$200 |
DJ |
THE PLANETS |
1992-09-10 |
#1839 |
|
In our solar system it's the outermost of the inner planets |
Mars
DD
|
$2,000 |
DJ |
ASTRONOMY |
1992-03-30 |
#1756 |
|
Areology is the scientific study of this planet |
Mars
|
|
FJ |
ASTRONOMY |
1992-02-25 |
#1732 |
|
In 1719 this planet was so bright that some people mistook it for a red comet |
Mars
|
$200 |
DJ |
ASTRONOMY |
1991-12-04 |
#1673 |
|
According to the Information Please Almanac, it's the planet we know the most about after Earth |
Mars
|
$200 |
DJ |
THE SOLAR SYSTEM |
1991-10-02 |
#1628 |
|
Neighboring planet on which you'd find the 15-mile-high Volcano Olympus Mons |
Mars
|
$600 |
DJ |
ASTRONOMY |
1991-06-13 |
#1579 |
|
One theory holds that this planet's two moons are captured asteroids |
Mars
|
$600 |
DJ |
THE PLANETS |
1990-12-31 |
#1461 |
|
As can be seen thru a telescope, the sizes of this red planet's polar ice caps change with the seasons |
Mars
|
$200 |
DJ |
ASTRONOMY |
1990-11-07 |
#1423 |
|
Scorpio is ruled by this violent planet, which may explain why Scorpios are aggressive |
Mars
|
$300 |
J |
ASTROLOGY |
1990-10-05 |
#1400 |
|
This planet's reddish hue comes from the oxidized iron on its surface |
Mars
|
$400 |
DJ |
THE PLANETS |
1990-07-13 |
#1370 |
|
In 1971 Mariner 9 discovered a volcano on this planet rising 15 1/2 miles above the surface |
Mars
|
$800 |
DJ |
THE PLANETS |
1990-03-05 |
#1276 |
|
In January 1989 the Soviet probe Phobos II went into orbit around this planet |
Mars
|
$400 |
J |
MAN IN SPACE |
1989-07-05 |
#1133 |
|
Its moon Phobos is only 14 miles across, while its 2nd moon, Deimos, is even smaller |
Mars
|
$200 |
DJ |
ASTRONOMY |
1988-03-22 |
#827 |
|
Restudying data from Viking I, scientists believe this planet once had enough water to support life |
Mars
|
$100 |
J |
ASTRONOMY |
1986-03-21 |
#400 |
|
In a 1964 Christmas film, Pia Zadora played Girmar, a kid from this planet |
Mars
|
$300 |
J |
THE PLANETS |
1985-12-05 |
#324 |
|
Though not Communist, it's known as the red planet |
Mars
|
$200 |
DJ |
ASTRONOMY |
1984-11-05 |
#41 |
|
Only planet to have seasons similar to Earth's |
Mars
|
$1,000 |
DJ |
ASTRONOMY |
1984-09-12 |
#3 |