HTTP/1.1 200 OK Connection: keep-alive Content-Length: 0 content-type: text/html; charset=utf-8 x-ftr-request-id: ccf20707-2052-4161-9f16-203661669524 x-frame-options: SAMEORIGIN content-security-policy: frame-ancestors self x-article-id: HzPMhM6VrwrGJe7dfvvdB7 x-modified-date: 1554792892 last-modified: Fri, 18 Apr 2025 19:12:40 GMT xkey: space-platform-responsive xkey: space-article-HzPMhM6VrwrGJe7dfvvdB7 xkey: space-articletype-news xkey: space-articletemplate-standard xkey: space-article-age-ancient xkey: space-region-US xkey: space-language-en xkey: space-modifieddate-1554792892 xkey: space-author-eqxmhfnkmdK8rDt4YgfXiD xkey: space-tag-2dbVcJBaHWwRgN8uuXGq3U xkey: space-tag-C5oAn7ZZhAGLjSSZDCPuAJ xkey: space-article-extended-ttl-true xkey: space-flexi-page-guid-default_page_layout_news xkey: space-flexi-controller-FlexiPageLayout:index xkey: space-flexi-layout-news xkey: space-flexi-route-custom_route_1699552135 xkey: space-version-1244403 xkey: space-server-phpfpm-59bcbc5f75-l52h8 xkey: space-hawkwidgets-17.9.26-e588b9e6e85ae60d6d8f6f914147d4dd8cfc7cb0 x-ftr-cache-status: MISS MISS x-age: 0 x-ftr-request-id: 00000000000000000000FFFF9D344546:3BF9_00000000000000000000FFFFB9711938:01BB_6802A427_3E4F967:3D7BED x-ftr-balancer: vanilla-mochi-http-haproxy-prod-2 x-ftr-backend: varnish-leopard x-ftr-backend-server: leopard1 Via: 1.1 varnish, 1.1 varnish Accept-Ranges: bytes Age: 253307 Date: Mon, 21 Apr 2025 17:34:28 GMT X-Served-By: cache-lon4270-LON, cache-bur-kbur8200165-BUR X-Cache-Hits: 3, 0 X-Timer: S1745256869.599143,VS0,VE1 Vary: Accept-Encoding, X-FTR-kiosq-user-status, X-FTR-kiosq-server-side-user-status, X-Country-Code, X-FTR-ABTest-Group Set-Cookie: FTR_Country_Code=US; path=/; domain=www.space.com X-Country-Code: US X-Country-Code-Real: US Strict-Transport-Security: max-age=31536000; includeSubDomains Set-Cookie: FTR_Cache_Status=HIT-CLUSTER; path=/; domain=www.space.com x-cache: HIT-CLUSTER Cache-Control: no-store,private alt-svc: h3=":443";ma=86400,h3-29=":443";ma=86400,h3-27=":443";ma=86400