CR4 - Forum: Aerospace

09/24/2009 9:37 AM First Telescope for an 11-Year Old

by English Rose

Last post: 10/19/2009 4:34 AM

by English Rose

25

6931

10/18/2006 2:50 AM Check Halley's Comet this Weekend!

by Jorrie

Last post: 11/25/2009 12:14 AM

by masu

22

2128

02/25/2009 9:54 AM Galaxy May Be "Full of Earths", Alien Life

by Bayes

Last post: 03/02/2009 7:19 PM

by Epke

35

2002

10/13/2016 10:23 AM Earth Not Rotating

by Janissaries

Last post: 12/04/2017 3:38 PM

by James Stewart

254

1979

11/01/2006 1:29 PM Airplane on a Treadmill?

by Anonymous Poster

Last post: 01/27/2010 3:03 PM

by Anonymous Poster

135

1898

11/19/2006 12:50 PM Dark Energy Battles Dark Matter

by Jorrie

Last post: 11/03/2008 12:26 AM

by Jorrie

23

1837

04/07/2021 8:14 PM Secret Message to Mars

by Rixter

Last post: 04/30/2021 4:52 PM

by Stephen Archer

8

1736

06/01/2009 1:24 PM Airbus A330-200

by indel

Last post: 06/26/2009 5:17 PM

by kudukdweller9

206

1678

03/13/2013 8:42 PM Paper Planes

by Kris

Last post: 03/23/2013 11:27 AM

by English Rose

36

1607

04/20/2021 3:33 AM Powered Flight on Mars

by PWSlack

Last post: 04/30/2021 12:41 PM

by dkwarner

14

1606

03/28/2010 2:58 PM Oh Crap, an Asteroid is Coming Our Way! But Wait....

by chrisg288

Last post: 02/22/2020 7:55 AM

by HiTekRedNek

205

1525

08/05/2008 6:27 AM bolt calculation

by eyal g

Last post: 08/20/2008 4:57 PM

by nick name

4

1482

05/26/2011 2:03 PM The Antiscience Strikes Again!

by Bayes

Last post: 06/11/2011 8:18 AM

by Garthh

294

1420

04/24/2015 4:13 PM When It Just Isn't Your Day to Die

by lyn

Last post: 05/21/2015 11:12 AM

by lyn

28

1356

05/20/2018 4:47 AM Magtube Question

by Edward Barnett

Last post: 09/18/2020 9:20 AM

by dk.odi100

116

1344

03/18/2016 5:58 PM Is This Possible?

by Fredski ; also posted in General Discussion

Last post: 03/24/2016 2:02 PM

by Fredski

102

1341

12/07/2015 9:09 PM Man Noticed This Abandoned Hangar But What's Inside Caught Him By Surprise

by AussieBob

Last post: 01/28/2016 1:13 AM

by Casper71

24

1215

12/10/2013 7:49 PM Unknown Object In Desert

by spaceracer

Last post: 12/27/2013 11:23 AM

by Drew K

22

1181

04/02/2017 2:52 PM 50-Year-Old Rocket Stage Involved in Orbital Debris Event

by Andrew Westman

Last post: 04/04/2017 10:17 AM

by wmerryall

11

1173

01/31/2019 2:01 AM Aircraft

by Ashish1101

Last post: 05/21/2020 9:06 AM

by not so smart

28

1166

03/09/2017 11:08 PM Hubble Dates Black Hole’s Last Big Meal

by Andrew Westman

Last post: 03/13/2017 1:05 PM

by IQ

5

1162

03/10/2017 2:26 AM Event Horizon Telescope Ready to Image Milky Way's Central Black Hole

by Andrew Westman

Last post: 03/11/2017 1:31 PM

by StandardsGuy

2

1139

12/03/2011 9:49 AM Solid Science Or Nutcase On A Power Trip?

by kramarat

Last post: 03/10/2012 7:44 AM

by kramarat

195

1130

07/09/2009 5:43 PM Airplane Black Boxes

by FLIPFLOP

Last post: 12/04/2010 11:15 PM

by kudukdweller9

98

1130

09/11/2017 3:58 PM The Land of No Shadows

by James Stewart

Last post: 10/30/2017 10:11 AM

by James Stewart

109

1128

01/01/2011 12:56 AM What is Least Likely to Happen in 2011?

by bwire

Last post: 01/11/2011 1:17 PM

by micahd02

164

1124

02/16/2008 12:51 PM Pre Spin Airplane Wheels

by dellori3

Last post: 08/22/2008 9:24 AM

by weirdwalt

23

1114

02/20/2017 6:28 PM Helium vs Hot Air Lift

by Declex Hill

Last post: 02/22/2017 1:02 PM

by phph001

22

1101

04/12/2017 2:57 PM Stageless Rocket Coming Out of New Mexico to an Orbit Near You

by James Stewart

Last post: 04/13/2017 10:09 AM

by James Stewart

4

1098

03/14/2017 1:27 PM Metal Storm Few Upgrades Trajectory Net Cool Gun vs Jet

by alex12

Last post: 03/15/2017 2:06 AM

by alex12

9

1088

06/09/2017 1:50 PM Close Encounters of the Classified Kind

by Andrew Westman

Last post: 06/12/2017 10:19 AM

by rashavarek

11

1043

11/02/2014 6:52 AM Dangerous Asteroid Rapidly Approaching Earth?

by spacevudo

Last post: 11/11/2014 12:41 AM

by Gavilan

33

1038

03/26/2012 2:22 PM Conceptual Design of New Aero-Vehicle

by adiptadatta

Last post: 03/28/2012 9:13 PM

by chrisg288

29

1036

03/19/2014 8:35 AM What Was In The Malaysian Plane´s Hold?

by r&ddoc

Last post: 04/25/2014 4:51 AM

by Stuart21

91

1032

01/26/2013 8:06 PM Why Couldn't a Laser be Used to Propel a Spacecraft?

by thetuxcat

Last post: 03/22/2013 10:29 AM

by Janissaries

112

1019

02/22/2017 6:18 PM 7 Earth-Size, Habitable-Zone Planets Found Around A Single Star

by Andrew Westman

Last post: 02/27/2017 1:41 PM

by MR. Guest

46

1017

06/17/2015 4:52 PM Was Apollo Faked?

by Fredski

Last post: 06/22/2015 11:39 AM

by C-Mac

77

1001

12/17/2009 2:42 PM The Relative Size of Planets and Stars - A Great Website

by Bayes

Last post: 12/21/2009 6:55 AM

by Randall

11

997

07/14/2011 11:25 AM James Webb Space Telescope: An Antiscience Tragedy Unfolding

by Bayes

Last post: 07/23/2011 10:18 PM

by Garthh

122

994

10/20/2019 10:03 PM The Helical Engine: Will It Work?

by Rixter

Last post: 02/15/2020 9:13 AM

by HiTekRedNek

27

986

04/10/2012 3:01 AM NASA Moon Mission Fake

by mathewkyle

Last post: 04/23/2012 10:49 PM

by MR. Guest

79

959

09/20/2015 2:43 PM SR71 Engine

by Fredski

Last post: 09/30/2015 12:12 PM

by energyconversion

53

958

01/08/2015 7:21 AM Global Warming?

by bpsingh

Last post: 01/20/2015 5:56 PM

by James Stewart

111

941

11/23/2015 10:04 PM What is This.....Exactly?

by Fredski

Last post: 12/29/2015 5:20 PM

by Casper71

30

940

12/02/2013 8:31 AM Big Bang Questions - Not a Religious Post

by 1capybara

Last post: 01/09/2017 10:49 PM

by Dragonsfarm

62

935

08/17/2009 5:13 PM High Altitude Propellor Design Differences

by NSS

Last post: 03/02/2015 12:21 PM

by pauldavidson

33

927

09/20/2020 11:18 PM Could a 747 Take Off Using Engine Thrust Alone with No Wheels?

by Anonymous Poster

Last post: 11/05/2020 11:38 AM

by PWSlack

49

925

06/06/2011 8:50 PM A Breakthrough Rotorcraft Technology

by jlawren3

Last post: 11/15/2011 2:32 PM

by jlawren3

39

921

10/16/2017 4:36 PM Neutron Stars Collide, Create Black Hole, Release Gamma Ray Burst

by James Stewart

Last post: 12/22/2017 4:56 AM

by Codemaster

20

917

08/15/2008 7:51 PM Airplane Wings: Optimal Radius Curve

by RATSSTAR

Last post: 02/05/2009 8:24 PM

by Anonymous Poster

27

916

05/15/2017 11:06 AM Orbital Plot of Cassini Last Three Dives

by Anonymous Poster

Last post: 05/17/2017 11:01 PM

by JE in Chicago

11

913

07/13/2018 3:46 PM Could You Do It? Land a Plane if the Pilots Were Incapacitated?

by lyn

Last post: 12/31/2018 4:25 PM

by munch

105

899

08/09/2011 11:41 PM The Kepler Mission- Antiscience's Next Victim

by Bayes

Last post: 08/17/2011 1:34 PM

by cuba_pete

143

871

09/30/2006 4:00 PM Lies, More Lies, and Arithmetic

by Blink

Last post: 05/11/2009 5:18 PM

by RGO

30

870

04/02/2012 10:04 AM Assume for a Minute that We Are Not Alone in the Universe

by NotUrOrdinaryJoe

Last post: 04/11/2012 10:44 AM

by mini-goat

119

868

08/20/2020 1:30 AM Starlink Orbital Decay

by Gavilan

Last post: 04/05/2021 12:37 PM

by dkwarner

16

863

01/02/2018 9:05 AM Hydrogen/Oxygen Rocket Exhaust Gases

by Sapling

Last post: 01/08/2018 2:17 PM

by James Stewart

40

860

06/28/2007 1:24 AM The 'Moon Illusion' Again!

by Jorrie

Last post: 06/29/2007 1:14 PM

by Kris

13

835

09/29/2015 7:41 AM Ultrasonic Antenna

by tom@windoor

Last post: 10/05/2015 2:51 PM

by tom@windoor

24

834

07/13/2014 12:04 PM Space Rockets

by ronseto

Last post: 10/12/2019 10:20 PM

by Dragon113

31

826

09/28/2016 10:37 PM Wind Tunnel Project

by Windtunnelboy

Last post: 10/03/2016 9:21 AM

by Thermaflo

41

825

03/03/2013 11:58 PM Any Thoughts About Installing CNG On a Light Piston Aircraft Engine?

by gherrick

Last post: 12/03/2013 5:35 PM

by ronwagn

88

820

11/13/2007 10:15 AM Free Piston Stirling

by DAG

Last post: 11/14/2007 12:54 PM

by Scapolie

14

818

11/10/2015 2:42 PM Nearly as Strong as Titanium but Lighter than Styrofoam

by HullRider

Last post: 11/12/2015 3:35 PM

by PWSlack

16

815

11/29/2014 11:37 AM What is the Proof or Evidence that Stars Still Exist?

by Noudge79

Last post: 12/08/2014 5:59 PM

by Noudge79

107

804

03/18/2012 2:22 PM Proof That Pi Equals 4!

by Steve Urich

Last post: 07/05/2022 4:10 PM

by phoenix911

23

799

04/21/2016 10:44 AM New Jet Hoverboard Video

by James Stewart

Last post: 04/22/2016 9:10 AM

by James Stewart

24

796

08/20/2015 9:36 AM What India Mars Orbiter??

by Fredski

Last post: 08/24/2015 9:09 AM

by adreasler

14

796

05/03/2015 11:59 PM Propellantless Propulsion In Space Applications

by Gavilan

Last post: 06/16/2015 12:53 PM

by Gavilan

61

796

10/07/2011 10:16 PM Solving a Problem...

by chrisg288

Last post: 10/11/2011 2:52 PM

by Far

106

792

08/08/2006 2:52 PM Mars Is Coming to Us!

by whats news

Last post: 08/10/2006 8:43 AM

by MadHatter

9

790

06/02/2006 2:45 PM The X-48B Tailless Aircraft

by Steve Melito

Last post: 06/13/2006 11:59 AM

by Paddy O'Flanigan

2

785

09/28/2015 4:20 AM Boeing Is Doing What?

by Gavilan

Last post: 10/06/2015 10:53 PM

by Munster

23

778

04/04/2010 5:03 PM Aral Sea 'Shocking Disaster'

by qaqcpipeman

Last post: 04/30/2010 1:23 PM

by Anonymous Poster

69

776

12/18/2015 8:31 PM Smoking Brakes

by Fredski

Last post: 12/27/2015 9:03 PM

by Fredski

51

771

02/26/2016 1:19 PM New Bomber?

by Fredski

Last post: 03/24/2016 3:26 PM

by wolfie62

18

768

04/01/2011 2:38 AM Ancient Astronauts Fact or Fiction

by ronron

Last post: 04/11/2011 12:21 PM

by Anonymous Poster

59

768

01/26/2016 2:37 AM A 10 Pilot Landed Missile Hit Plane Safely

by Andy Germany

Last post: 02/02/2016 10:59 AM

by phoenix911

24

767

12/15/2013 11:48 AM Lunar Skepticism

by Fredski

Last post: 01/07/2014 4:33 PM

by brich

74

767

07/07/2011 3:14 PM More Antiscience: Cancelling the James Webb Space Telescope

by Bayes

Last post: 08/05/2011 5:50 PM

by bushidodadon475

111

761

08/22/2016 4:00 PM Russian Aerodynamic or Aircraft Design Books

by kdrdgn07 ; also posted in Engineering Careers

Last post: 08/23/2016 3:01 AM

by PWSlack

7

759

07/17/2014 4:23 PM What Happened to Malaysia Airline Flight MH-17?

by dj95401

Last post: 08/01/2014 11:41 PM

by dvmdsc

60

752

04/29/2014 9:50 AM New Lead in Missing Airliner

by SolarEagle

Last post: 05/07/2014 11:51 PM

by Gavilan

67

750

10/16/2014 4:24 PM Go Skunkworks!!!!!!

by James Stewart

Last post: 10/22/2014 1:54 PM

by James Stewart

35

749

04/08/2016 5:02 PM The Falcon Has Landed

by Pulpmillguy

Last post: 04/11/2016 9:44 AM

by rashavarek

5

747

07/20/2011 1:37 PM Name Pluto's New Moon!

by Bayes

Last post: 08/08/2011 8:28 AM

by Rok

90

747

04/30/2020 2:27 AM Starlink Satellites

by gutmonarch

Last post: 05/17/2020 10:26 AM

by AaronWilliams

10

745

05/11/2017 9:40 AM New Photos of the Next Mars Rover

by HUSH

Last post: 05/19/2017 10:20 AM

by James Stewart

10

742

06/09/2016 11:01 PM Who Wants A Drone When You Could Get This?

by daffy

Last post: 06/11/2016 8:01 AM

by CaptMoosie

4

733

05/05/2018 3:10 PM Reminiscing About The Warthog

by Doorman

Last post: 10/31/2018 3:49 PM

by munch

22

729

07/17/2015 4:56 PM Energy Beams to Launch Rockets?

by Fredski

Last post: 07/21/2015 9:55 AM

by Original_Macgyver

9

728

09/19/2011 12:07 PM Coronal Mass Ejection Turns Out the Lights

by WJMFIRE

Last post: 10/07/2011 3:13 PM

by C-Mac

82

723

04/24/2007 8:36 PM Scientists find most Earth-like planet yet

by Harbinger

Last post: 05/03/2007 2:10 PM

by bhankiii

42

723

02/28/2017 12:00 AM The Flying Car

by Anonymous Poster

Last post: 01/11/2020 12:56 AM

by lexx7887

49

722

10/01/2007 9:28 AM Comets and asteroids hitting Earth

by Jaguar

Last post: 10/15/2007 11:36 AM

by RHABE

88

719

08/02/2020 2:56 AM SpaceX Return

by PWSlack

Last post: 03/26/2021 6:14 AM

by JCooper

11

714

04/03/2019 6:14 PM Silicon Substrate Cleaning Before Coating

by Anonymous Poster

Last post: 04/05/2019 12:05 PM

by silvCrow

14

706

04/24/2007 1:05 AM NASA release 3D image of the sun today

by cnpower

Last post: 05/06/2007 4:20 AM

by cnpower

17

703

09/27/2010 5:50 PM North American Manufacturers of Stirling Engines

by elnav

Last post: 09/29/2010 3:17 PM

by Smeaton

22

701

08/17/2013 9:20 PM Another One Flies Itself Into the Ground

by lyn

Last post: 08/20/2013 5:16 PM

by geraldpaxton

18

700

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