TOP 10 Countries With The Largest Areas of Coral Reef

1.Indonesia

2.Australia

3.The Philippines

4.France-overseas territories

5.Papu New Guinea

6.Fiji

7.Maldives

8.Saudi Arabia

9.Marshall Islands

10.India

THE 10 Smallest Seas

1.Gulf of California

2.Persian Gulf

3.Yellow Sea

4.Baltic Sea

5.North Sea

6.Red Sea

7.Black Sea

8.Andaman Sea

9.East  China Sea

10.Hudson Bay

TOP 10 Highest Tides

1.Burncoat Head

2.La Rance Estuary

3.Avonmouth

4.Anchorage

5.Liverpool

6.St John

7.Dover

8.Cherbourg

9.Antwerp

10.Yangon

THE 10 Deepest Deep Sea Trenches

1.Marianas

2.Tonga

3.Kuril Kamchatka

4.Philippine

5.Kermadec

6.Bonin

7.New Britain

8.Izu

9.Puerto Rico

10.Yap

THE 10 Deepest Oceans And Seas

1.Southern Ocean

2.Pacific Ocean

3.Indian Ocean

4.Atalantic Ocean

5.Caribbean Sea

6.South China Sea

7.Red Sea

8.Bering Sea

9.Gulf Of Mexico

10.Mediterranean Sea

TOP 10 Most Experienced US Astronauts

1.Peggy Whitson

2.C.Michael Foale

3.Edward M Fincke

4.Michael Lopez

5.Carl E Walz

6.Leroy Chiao

7.Daniel W Bursch

8.William S McArthur

9.Shannon Lucid

10.Kenneth Bowersox

TOP 10 Longest Single Spaceflights

1.Valeriy V Polyakov

2.Sergei V Avdeyev

3.Musa K Manarov, Vladimir G  Titov

4.Yuri V Romanenko

5.Sergei  K  Krikalyov

6.Valeriy V Polyakov

7.Oleg Y Aktov,Leonid D Kizim,Vladmir A Solovyov

8.Michael E Lopez, Mikhail V Tyurin

9.Anatoli N Berezovoi, Valentin V Lebedev

10.Nikolai M Budarin, Talgat A Musabayev

The 10 First Animals In Space

1.Laika

2.Laska

3.Benjy

4.Able

5.Baker

6.Otvazhnaya

7.Unnamed Rabbit

8.Sam

9.Miss Sam

10.Belka and Strelka

The 10 First Moonwalkers

1.Neil Armstrong

2.Edwin Buzz Aldrin

3.Charles Conrad Jr

4.Alan Bean

5.Alan Shepard

6.Edgar Mitchell

7.David Scott

8.James Irwin

9.John Young

10.Charles Duke Jr

TOP 10 Largest Planetary Moons

1.Ganymede

2.Titan

3.Callisto

4.Io

5.Moon

6.Europa

7.Triton

8.Titania

9.Rhea

10.Oberon

TOP 10 Comets Coming Closest To Earth

1.Comet  of  1491

2.Lexell

3.Tempel Tuttle

4.IRAS Araki Alcock

5.Halley

6.Biela

7.Grischow

8.Pons Winnecke

9.Comet of 1014

10.La Hire

TOP 10 Largest Meteorites Ever Found

1.Hoba West

2.Campo del Ceilo(the tent)

3.Ahnighito

4.Armanty

5.Bacuberito

6.Agpalilik

7.Mbosi

8.Campo del Cielo

9.Willamette

10.Chupaderos

TOP 10 Asteroid Discovery Observatories

1.Lincoln Laboratory ETS

2. Steward Observatory

3.Palomer Mountain/NEAT

4.Lowell Observatory

5.Palomer Mountain

6.European Southern Observatory

7.Catalina Sky Survey

8.Haleakala-AMOS

9.Oizumi

10.Siding Spring Observatory

TOP 10 Longest Years In The Solar System

1.Eris

2.Make make

3.Pluto

4.Neptune

5.Uranus

6.Saturn

7.Jupiter

8.Ceres

9.Mars

10.Earth

TOP 10 Galaxies Nearest To Earth

1.Sagittarius Dwarf

2.Large Megellanic Cloud

3.Small Megellanic Cloud

4.Draco Dwarf

5.Ursa Minor Dwarf

6.Sculptor Dwarf

7.Sextans Dwarf

8.Carina Dwarf

9.Fornax Dwarf

10.Leo ||

TOP 10 Brightest Galaxies

1.Large Magellanic Cloud

2.Small Magellanic Cloud

3.Andromeda Galaxy

4.Triangulum Galaxy

5.Centaurus Galaxy

6.Bode's Galaxy

7.Silver Coin Galaxy

8.Southern Pinwheel Galaxy

9.Pinwheel Galaxy

10.Cigar Galaxy

TOP 10 Stars Nearest To Earth

1.Proxima Centauri

2.Alpha Centauri

3.Barnard's Star

4.Wolf  359

5.Lalande 21185

6.Sirius

7.Luyten 726-8

8.Ross 154

9.Ross 248

10.Epsilon Eridani

TOP 10 Brightest Stars

1.Sirius

2.Canopus

3.Arcturus

4.Alpha Centauri A

5.Vega

6.Capella

7.Rigel

8.Procyon

9.Achernar

10.Beta Centauri

TOP 10 Largest Stars

1.VY Canis  Majoris

2.WOH G64

3.VV Cephei A

4.V354 Cephei

5.KW Sagitarii

6.Mu Cephei

7.KY Cygni

8.V509 Cassiopeiae

9.V838 Monocerotis

10.V382 Carinae