| Cover | Dec. 19, 2023 |
| Document Information [Line Items] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Dec. 19, 2023 |
| Entity File Number | 001-41619 |
| Entity Registrant Name | Mars Acquisition Corp. |
| Entity Central Index Key | 0001892922 |
| Entity Tax Identification Number | 00-0000000 |
| Entity Incorporation, State or Country Code | E9 |
| Entity Address, Address Line One | Americas Tower |
| Entity Address, Address Line Two | 1177 Avenue of The Americas |
| Entity Address, Address Line Three | Suite 5100 |
| Entity Address, City or Town | New York |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10036 |
| City Area Code | 888 |
| Local Phone Number | 622-1218 |
| Written Communications | true |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
| Units, each consisting of one ordinary share, par value $0.000125, and one right entitling the holder to receive 2/10 of an ordinary share | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Units, each consisting of one ordinary share, par value $0.000125, and one right entitling the holder to receive 2/10 of an ordinary share |
| Trading Symbol | MARXU |
| Security Exchange Name | NASDAQ |
| Ordinary Shares, $0.000125 par value | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Ordinary Shares, $0.000125 par value |
| Trading Symbol | MARX |
| Security Exchange Name | NASDAQ |
| Rights to receive two-tenths (2/10) of one ordinary share | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Rights to receive two-tenths (2/10) of one ordinary share |
| Trading Symbol | MARXR |
| Security Exchange Name | NASDAQ |
